Stay Flat Mailing Envelopes

200 results
Ship-Lite Self Seal Catalog Envelope 12" x 15 1/2", White, 100/Carton (SLF1215WH) image 1
Item: 947675
Model: SLF1215WH

Ship-Lite® Flat envelope measuring 12" x 15 1/2" is made of white paper reinforced with mesh screen poly fibers. Envelope is moisture resistant and features self-seal closure for added convenience..Made from white paper reinforced with mesh screen poly fibers..Envelopes are moisture-resistant..Feature self-seal closure..Dimensions: 12" x 15 1/2".100/case.Flat Ship-Lite® Envelope is six times stronger than paper envelope.

Price is  $116.69
Unit of measure 100/Carton
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Staples EasyClose Invitation Envelopes, 5.75" x 8.75", Ivory, 100/Box (473955/19195) image 1
Item: 473955
Model: 473955

Mail letters, bills, brochures, records and other important papers with these invitation envelopes. With square flaps, these envelopes are ready to seal without the use of any water or sponges and are made with 24-pound paper-stock, providing durability. These Staples EasyClose invitation envelopes have an ivory color that helps addresses and other text to stand out while offering a clean look..Invitation envelope keeps your documents flat in the mail.Envelope size: 5.75"H x 8.75"W.EasyClose envelope closure.Flap and adhesive method: square with adhesive strip.Ivory and made of paper.100 envelopes per box.Great to use to store items such as invitations.Send mail, checks and other statements with this 100-pack of Staples EasyClose ivory invitation envelopes.

Price is  $25.99
Unit of measure 100/Box
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14 1/8" x 8 5/8" x 1" Easy-Fold Mailer, White, 50/Bundle (M1491) image 1
Item: 949035
Model: M1491

Easy-Fold Mailers offers convenience in mailing across items. Scored at multiple depths for flexibility. Quickly package items. No carton set up..Great for mailing flat materials such as framed pictures..Scored at multiple depths for flexibility..Place product in center, fold in the sides at your desired depth and seal with tape..Provides a professional appearance for your shipment..Manufactured from ECT-32-B, white corrugated..Easy-Fold Mailers are great for mailing books, catalogs and framed pictures.

Price is  $64.49
Unit of measure 50/Bundle
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6" x 8" Self-Sealing Fiberboard Mailer, Brown, 100/Carton (RM1K) image 1
Item: 447180
Model: RM1K

The 6" x 8" Kraft Flat Mailer features closure that is quick and easy to use. Mailer includes rigid chipboard construction that protects contents from bending and crushing. Sold 100 per case..6" x 8".QuickStrip closure is quick and easy to use - simply remove strip and press to close.Rigid chipboard construction protects contents from bending and crushing.Convenient tear-tab opens easily without harming contents.Lightweight mailers reduces postage costs.Staples Brand 100% Satisfaction Guaranteed.Sold 25 per case+AG1832:AL1832.Manufactured from .028 kraft chipboard..Peel and seal closure with pull tear-strip for easy opening..Light-weight to save on postage..No additional stiffeners needed..Sold 100 per case..Self-Seal White Flat Mailers are strong to protect photos and documents during shipping.

Price is  $49.79
Unit of measure 100/Carton
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JAM Paper Self Seal Catalog Envelope, 6" x 9", Blue, 25/Pack (187947509) image 1
Item: 24557912
Model: 187947509

JAM Paper Blue 6 x 9 Open End Envelopes are made out of smooth, high quality, 24lb paper. This pack contains an even total of 25 envelopes. Each one of these open end envelopes measures 6 x 9 in size, which makes them ideal for mailing brochures, announcements, catalogs, and much more without folding or creasing! These envelopes open on one of the shorter ends and feature straight flaps with reliable, peel and seal closures. Each one features a basic and versatile blue color. Use these envelopes for wide variety of home and office mailing purposes. Recipients are certain to be impressed by their construction and quality. Size: 6 x 9 in. | Color: Blue | Quantity: 25/pack.Color: Blue.Size: 6 x 9 inches.Quantity: 25 envelopes per pack

Price is  $18.99
Unit of measure 25/Pack
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11 1/8" x 8 5/8" x 4" Easy-Fold Mailer, White, 50/Bundle (M1BKXL) image 1
Item: 947433
Model: M1BKXL

Easy-Fold Mailers offers convenience in mailing across items. Scored at multiple depths for flexibility. Quickly package items. No carton set up..Great for mailing flat materials such as framed pictures..Scored at multiple depths for flexibility..Place product in center, fold in the sides at your desired depth and seal with tape..Provides a professional appearance for your shipment..Manufactured from ECT-32-B, white corrugated..Easy-Fold Mailers are great for mailing books, catalogs and framed pictures.

Price is  $87.69
Unit of measure 50/Bundle
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8" x 6" Self-Sealing Fiberboard Mailer, White, 25/Carton (RM1SS25PK) image 1
Item: 578448
Model: RM1SS25PK

Ideal for shipping and storing photos, documents, artwork, floppy disks and reports. Peel-and-stick closure delivers a quick and secure seal. And its Unpadded design resists bending or crushing to guard the contents enclosed..Manufactured from lightweight chipboard to save on freight costs.Peel and seal closure.No additional stiffeners needed.Pull tab tear strip for easy opening

Price is  $26.19
Unit of measure 25/Carton
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17" x 21" Self-Sealing Fiberboard Mailer, White, 100/Carton (RM7W) image 1
Item: 447191
Model: RM7W

The 17" x 21" Tab-Lock White Flat Mailers are made from strong chipboard and require no additional stiffeners to protect your documents. Sold 100 per Case..Dimensions: 17" x 21".Rigid chipboard construction protects contents from bending and crushing.Economical locking tabs secure contents.Attractive white mailers provide a clean and professional appearance.Lightweight mailers reduces postage costs.Manufactured from .028 white chipboard..Strong chipboard mailers protect photos and documents during shipping..Light-weight to save on postage, no additional stiffeners needed..Economical tab-lock closure..Sold 100 per case..Self-Seal White Flat Mailers are strong to protect photos and documents during shipping.

Price is  $180.99
Unit of measure 100/Carton
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13" x 18" Self-Sealing Fiberboard Mailer, White, 100/Carton (RM18SS) image 1
Item: 447178
Model: RM18SS

The 13" x 18" Self-Seal White Flat Mailers are made from strong chipboard and require no additional stiffeners to protect your documents. Sold 100 per Case..Strong chipboard mailers protect photos and documents during shipping..Manufactured from lightweight chipboard to save on freight costs..No additional stiffeners needed..Peel-and-seal closure..Pull tab tear strip for easy opening..Self-Seal White Flat Mailers are strong to protect photos and documents during shipping.

Price is  $190.79
Unit of measure 100/Carton
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7" x 9" Self-Sealing Fiberboard Mailer, White, 100/Carton (RM10W) image 1
Item: 424848
Model: RM10W

The 7" x 9" Tab-Lock White Flat Mailers are made from strong chipboard and require no additional stiffeners to protect your documents. Sold 100 per Case..Dimensions: 7" x 9".Manufactured from .028 white chipboard..Strong chipboard mailers protect photos and documents during shipping..Light-weight to save on postage, no additional stiffeners needed..Economical tab-lock closure..Sold 100 per case..Attractive white mailers provide a clean, professional and high quality appearance.Economical tab lock closure keeps contents secure, allows for repeated use and offers indefinite shelf life.Items remain flat during shipment without the added expense of additional stiffeners.Recommended for shipping photos, artwork or important documents.Lightweight to save on postage.80% recycled.Self-Seal White Flat Mailers are strong to protect photos and documents during shipping.

Price is  $38.69
Unit of measure 100/Carton
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12.75" x 15" Self-Sealing Fiberboard Mailer, White, 100/Carton (RM4W) image 1
Item: 424854
Model: RM4W

The 12-3/4" x 15" Tab-Lock White Flat Mailers are made from strong chipboard and require no additional stiffeners to protect your documents. Sold 100 per Case..Dimensions: 12-3/4"x 15".Rigid chipboard construction protects contents from bending and crushing.Economical locking tabs secure contents.Attractive white mailers provide a clean and professional appearance.Lightweight mailers reduces postage costs.Manufactured from .028 white chipboard..Strong chipboard mailers protect photos and documents during shipping..Light-weight to save on postage, no additional stiffeners needed..Economical tab-lock closure..Sold 100 per case..Self-Seal White Flat Mailers are strong to protect photos and documents during shipping.

Price is  $92.99
Unit of measure 100/Carton
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JAM Paper Self Seal Business Envelope, 10 x 13, White, 50 Pack (75423-50) image 1
Item: 24578447
Model: 75423-50

Safeguard important documents! When you can't or shouldn't fold the contents, document envelopes are the professional solution..Open End Catalog Envelopes.Size: 10 x 13 Open End Envelopes / 10in. x 13 in. / 10" x 13" / 254mm x 330mm.White.Peel & Press Closure

Price is  $30.29
Unit of measure 50/Pack
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JAM Paper Self Seal #10 Policy Envelope 4 1/8" x 9 1/2", Natural, 50/Pack (7716-NPC-50) image 1
Item: 24604491
Model: 7716-NPC-50

The #10 Open End Envelope (4 1/8" x 9 1/2") in 100% Recycled 80lb.. Natural with the flap along the short side is perfect for sending important documents or flat items, as well as small items and parts. The envelope's side flap prevents contents from falling out, and the Peel & Press adhesive strip provides for easy sealing..#10 Open End Envelopes (4 1/8" x 9 1/2").Color: 80lb.. Natural - 100% Recycled - 100% Post Consumer Fiber.50 envelopes per pack.Featuring - Peel & Press Sealing Method and Laser & Inkjet compatible.Perfect for sending important documents or flat items, as well as small items and parts.

Price is  $13.95
Unit of measure 50/Pack
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Staples Gummed Catalog Envelopes, 9"L x 12"H, White, 100/Box (50264/47286N) image 1
Item: 472886
Model: ST472886N-CC

Protect important documents in these Staples catalog envelopes. These bright white-wove 28-pound paper envelopes are ideal for mailing and storing documents laid flat to prevent creases. Each envelope in this 100-count box is large enough to accommodate thicker files, catalogs and brochures. With heavily gummed flaps, these Staples catalog envelopes seal securely shut to keep papers safe..Catalog envelopes are a reliable choice for multiple kinds of personal and business mailing purposes.White paper shows labeling and writing clear and concise.Dimensions: 9"L x 12"H, size #10.The gummed flap closure keeps your documents secured inside the envelope.Envelopes come in boxes of 100, making them an easy, and economical choice for the business that needs to spend wisely without sacrificing quality.Transport documents securely with this 100-count box of Staples 9 x 12-inch white wove gummed-flap catalog envelopes.

Price is  $36.99
Unit of measure 100/Box
Next-Day Delivery by tomorrow
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18" x 24" Self-Sealing Fiberboard Mailer, White, 50/Carton (RM11W) image 1
Item: 459013
Model: RM11W

The 18" x 24" Tab-Lock White Flat Mailers are made from strong chipboard and require no additional stiffeners to protect your documents. Sold 50 per Case..Dimensions: 18" x 24".Manufactured from .028 white chipboard..Strong chipboard mailers protect photos and documents during shipping..Light-weight to save on postage, no additional stiffeners needed..Economical tab-lock closure..Sold 50 per case..Attractive white mailers provide a clean, professional and high quality appearance.Economical tab lock closure keeps contents secure, allows for repeated use and offers indefinite shelf life.Items remain flat during shipment without the added expense of additional stiffeners.Recommended for shipping photos, artwork or important documents.80% recycled.Rigid chipboard construction protects contents from bending and crushing.Lightweight mailers reduces postage costs.Self-Seal White Flat Mailers are strong to protect photos and documents during shipping.

Price is  $91.99
Unit of measure 50/Carton
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JAM Paper 9 x 12 Metallic Booklet Envelopes, Stardream Gold, 25/Pack (V018321) image 1
Item: 261978
Model: V018321

Professionally send your documents with JAM Paper® Booklet Envelopes. When it comes to mailing brochures, catalogs, and important documents to clients and businesses, folding and creasing is forbidden. Keep your contents flat and in its original state using our gold metallic booklet envelopes while you remain professional! Available in a variety of colors and sizes, finding the perfect envelope has never been simpler. This pack contains 25 Gold Stardream Metallic envelopes. Each envelope measures 9" x 12", has a booklet opening, straight flap, gum closure, is made from 32 lb. paper, and has a metallic finish..Gold.Size: 9" x 12".Closure: Gum.Opening: Booklet.Material: Paper.Finish: Metallic.Flap: Straight.They are striking in style and size.These envelopes are big enough to fit magazines, booklets, and large brochures.Flap is on the longer side of the envelope.Large paper booklet envelopes come in 3 different sizes and several black styles for a truly customized black envelope.Paper weight: 32 lbs..25 envelopes per pack.JAM Paper® Gold stardream metallic envelopes in a pack of 25 is perfect for greeting cards, invitations or any other announcement and measures 9" x 10" in size.

Price is  $65.49
Unit of measure 25/Pack
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9.75" x 12.25" Tab Lock Fiberboard Mailer, Brown, 100/Carton (RM5) image 1
Item: 424833
Model: RM5

The 9-3/4" x 12-1/4" Kraft Flat Mailer includes economical locking tabs to secure contents. Mailer includes rigid chipboard construction that protects contents from bending and crushing. Sold 100 per case..Dimensions: 9-3/4" x 12-1/4".Rigid chipboard construction protects contents from bending and crushing.Economical locking tabs secure contents.Lightweight mailers reduces postage costs.Manufactured from .036 kraft chipboard..Light-weight to save on postage..No additional stiffeners needed..Economical tab-lock closure to secure contents..Sold 100 per case..Tab-Lock Kraft Flat Mailers are strong to protect photos and documents during shipping.

Price is  $76.49
Unit of measure 100/Carton
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Staples EasyClose Booklet Envelopes, 6" x 9", White, 250/Box (SPL570225) image 1
Item: 570225
Model: ST50157

Give mail a professional appearance with these white wove side-opening booklet envelopes. The 28-pound wove construction protects contents from moisture, dirt, and damage, while the side-open design lets you easily insert and remove documents. These Staples EasyClose wove side-opening booklet envelopes are white, so dark text and images are easy to read..Booklet envelopes keep your documents flat in the mail.Envelope size: 6"H x 9"W.EasyClose peel-and-stick closures to speed up mail preparation time.Square flap with adhesive strip.Made of white wove paper.250 envelopes per box.Ensure that invoices, notices, and other documents arrive clean and undamaged with this 250-pack of Staples EasyClose 6 x 9-inch white wove side-opening booklet envelopes

Price is  $51.99
Unit of measure 250/Box
Next-Day Delivery by tomorrow
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6" x 6" Self-Sealing Fiberboard Mailer, Brown, 200/Carton (RM9K) image 1
Item: 447179
Model: RM9K

The 6" x 6" Kraft Flat Mailer features closure that is quick and easy to use. Mailer includes rigid chipboard construction that protects contents from bending and crushing. Sold 200 per case..6" x 6".QuickStrip closure is quick and easy to use - simply remove strip and press to close.Rigid chipboard construction protects contents from bending and crushing.Convenient tear-tab opens easily without harming contents.Lightweight mailers reduces postage costs.Staples Brand 100% Satisfaction Guaranteed.Dimensions: 6" x 6".Manufactured from .028 kraft chipboard..Peel and seal closure with pull tear-strip for easy opening..Light-weight to save on postage..No additional stiffeners needed..Sold 200 per case..Self-Seal White Flat Mailers are strong to protect photos and documents during shipping.

Price is  $56.79
Unit of measure 200/Carton
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JAM Paper 9 x 12 Metallic Booklet Envelopes, Stardream Gold, Bulk 1000/Carton (v018321B) image 1
Item: 262058
Model: V018321B

JAM Paper® 9" x 12" Gold stardream metallic envelopes in a carton 1000 helps you to mail your item without having to bend or fold it. Envelopes is a self adhesive closure with a square gummed flap..Size: 9" x 12".Closure: Gum.Opening: Booklet.Material: Paper.Finish: Metallic.Flap: Straight.Paper weight: 32 lbs..1000 envelopes per carton.JAM Paper® Gold stardream metallic envelopes in a carton 1000 is perfect for greeting cards, invitations or any other announcement and measures 9" x 12" in size.

Price is  $1690.99
Unit of measure 1000/Carton
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Staples Clasp Catalog Envelopes, 9"L x 12"H, White, 100/Box (570253/14210) image 1
Item: 570253
Model: ST570253-CC

Store and mail important paperwork with these white wove envelopes. Thick 28-pound paper stands up to mailing or everyday handling in the office, while the clasp closures ensure security for any items inside. Each piece in this 100-pack of Staples clasp envelopes is ideal for storing and transporting various pieces of letter-size paperwork laid flat, reducing the risk of creases..Catalog envelopes are a reliable choice for multiple kinds of personal and business mailing purposes.White paper shows labeling and writing clear and concise.Dimensions: 9"L x 12"H.Clasp envelope is sure to attract attention and deliver in style.Envelopes come in boxes of 100, making them an easy and economical choice for the business that needs to spend wisely without sacrificing quality.Transport letter-size documents with this 100-count box of Staples 9 x 12-inch white-wove clasp envelopes.

Price is  $44.69
Unit of measure 100/Box
Next-Day Delivery by tomorrow
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Staples QuickStrip EasyClose Self Seal Invitation Envelopes, White Wove, 100/Box (ST394063/394063) image 1
Item: 394063
Model: ST394063/394063

Protect mail with these Staples EasyClose white greeting card envelopes. Each one is easy to close by removing the strip, and these envelopes don't require licking or a sponge to seal, while the 24-pound white wove paper offers durability and a light background to contrast against dark text and images for strong readability. These Staples EasyClose white invitation envelopes come in a pack of 100, so stocking up the supply closet is simple..Greeting Card envelopes keep your documents flat in the mail.Envelope size: 5.75"H x 8.75"W.EasyClose envelope closure.Flap and adhesive method: square with adhesive strip.White and made of paper.100 envelopes per box.Great to use to store items such as greetings and invitations.Send invitations and other personal or business correspondence with this 100-pack of Staples EasyClose white invitation envelopes.

Price is  $11.49
Unit of measure 100/Box
Next-Day Delivery by tomorrow
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11.5" x 9" Self-Sealing Fiberboard Mailer, 2, White, 100/Carton (RM2SS) image 1
Item: 424862
Model: RM2SS

The 9" x 11-1/2" Self-Seal White Flat Mailers are made from strong chipboard and require no additional stiffeners to protect your documents. Sold 100 per Case..Strong chipboard mailers protect photos and documents during shipping..Manufactured from lightweight chipboard to save on freight costs..No additional stiffeners needed..Peel-and-seal closure..Pull tab tear strip for easy opening..Self-Seal White Flat Mailers are strong to protect photos and documents during shipping.

Price is  $76.49
Unit of measure 100/Carton
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JAM Paper Self Seal Catalog Envelope, 9" x 12", White, 50 Per Pack (356828780B) image 1
Item: 24365275
Model: 356828780B

For documents that can't or shouldn't be folded, use JAM Paper® Open End Catalog Envelopes with Self Adhesive Closure. These 9" x 12" white catalog envelopes are suitable for sending larger contents such as marketing materials, brochures, catalogs, flyers, large artwork, invitations and more. Your contents stay in their original state to preserve presentation and keep things professional. Whether you are using in the office, home or classroom, these envelopes are appropriate for all occasions. Available in an assortment of colors and sizes, your perfect envelope is just a simple click away! This pack includes 50 envelopes made from 28 lb. paper. Each envelope has an open end opening, wallet flap, self adhesive strip closure and smooth finish..Quantity: 50 per pack.Our envelopes are made from 28 lb paper that has a wallet flap with a self adhesive closure strip.Our high-quality envelopes are perfect for business mailing, document organization, file storage, and more

Price is  $30.59
Unit of measure 50/Pack
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JAM Paper Self Seal Catalog Envelope, 9" x 12", 500/Box (12931115) image 1
Item: 2329403
Model: 12931115

JAM Paper Light Grey 9 x 12 Open End Envelopes with Self Adhesive Closures are made out of smooth, high quality, 28lb paper. This box contains an even total of 500 envelopes. Each of these envelopes measures 9 x 12 inches in size, which makes them perfect for enclosing standard, letter sized documents without any need for folding or risk of creating unnecessary creases. The keep the contents placed within them secure as they make their way through the mail, these envelopes have straight flap openings and reliable, peel and seal strip closures. These envelopes feature a versatile light grey color and are an excellent choice for a variety of home and office mailing needs..9" x 12" Open End Envelopes.Made with light grey paper.9" x 12" Open End.Self Adhesive Closure.500 envelopes per box.Safety Data Sheet

Price is  $285.59
Unit of measure 500/Box
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Quality Park Tyvek Flap-Stik Self Seal Catalog Envelope, 9 1/2" x 12 1/2", White, 100/Box (R1520) image 1
Item: 701078
Model: QUAR1520

Envelopes are made of DuPont Tyvek won't rip, tear or puncture. They are much stronger and more secure than traditional paper envelopes. Water-resistant and moisture-resistant envelopes are lightweight to save on postage costs. Envelopes are easy to use. Simply peel and seal..Business and commercial use.Flap-Stick closure; requires no moisture to seal.Lightweight DuPont tyvek provides superior protection for mailing important materials or documents.Water and moisture resistant.Release strip is easily accessible, yet maintains security of contents.Keeps your mail protected against bad weather, spills and rough handling.Patented release strip makes these open-end catalog envelopes easy to open. Convenient Flap-Stik closure does not require moisture to seal.

Price is  $134.99
Unit of measure 100/Box
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JAM Paper Self Seal Catalog Envelope, 6" x 9", Blue, 100/Pack (187947509D) image 1
Item: 24557916
Model: 187947509D

JAM Paper Blue 6 x 9 Open End Envelopes are made out of smooth, high quality, 24lb paper. This pack contains an even total of 100 envelopes. Each one of these open end envelopes measures 6 x 9 in size, which makes them ideal for mailing brochures, announcements, catalogs, and much more without folding or creasing! These envelopes open on one of the shorter ends and feature straight flaps with reliable, peel and seal closures. Each one features a basic and versatile blue color. Use these envelopes for wide variety of home and office mailing purposes. Recipients are certain to be impressed by their construction and quality. Size: 6 x 9 in. | Color: Blue | Quantity: 100/pack.Color: Blue.Size: 6 x 9 inches.Quantity: 100 envelopes per pack

Price is  $59.89
Unit of measure 100/Pack
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JAM Paper Self Seal Catalog Envelope, 6" x 9", Blue, 50/Pack (187947509I) image 1
Item: 24557979
Model: 187947509I

JAM Paper Blue 6 x 9 Open End Envelopes are made out of smooth, high quality, 24lb paper. This pack contains an even total of 50 envelopes. Each one of these open end envelopes measures 6 x 9 in size, which makes them ideal for mailing brochures, announcements, catalogs, and much more without folding or creasing! These envelopes open on one of the shorter ends and feature straight flaps with reliable, peel and seal closures. Each one features a basic and versatile blue color. Use these envelopes for wide variety of home and office mailing purposes. Recipients are certain to be impressed by their construction and quality. Size: 6 x 9 in. | Color: Blue | Quantity: 50/pack.Color: Blue.Size: 6 x 9 inches.Quantity: 50 envelopes per pack

Price is  $38.39
Unit of measure 50/Pack
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11.88" x 18.5" Self-Sealing Mailer, #6, 30/Carton (99322) image 1
Item: 24531432
Model: CBML6C

The IPG Curby mailer is lined with HexcelWrap honeycomb paper structure, offering substantial benefits over traditional wrapping materials. The mailer is curbside-recyclable and sustainable, and easily disposed with all your other recyclable materials..Overall mailer dimensions: 11.88" x 18.5".Adhesive strip.Paper-based, comes in kraft color.60 mailers per carton.Curbside-recyclable, sustainable, and can be easily disposed with all your other recyclable materials.Lined with HexcelWrap honeycomb paper structure, offering substantial benefits over traditional wrapping materials

Price is  $35.99
Unit of measure 30/Carton
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9" x 11.5" Self-Sealing Fiberboard Mailer, White, 100/Carton (RM2W) image 1
Item: 424850
Model: RM2W

The 9" x 11-1/2" Tab-Lock White Flat Mailers are made from strong chipboard and require no additional stiffeners to protect your documents. Sold 100 per Case..Dimensions: 9" x 11-1/2".Rigid chipboard construction protects contents from bending and crushing.Economical locking tabs secure contents.Attractive white mailers provide a clean and professional appearance.Lightweight mailers reduces postage costs.Manufactured from .028 white chipboard..Strong chipboard mailers protect photos and documents during shipping..Light-weight to save on postage, no additional stiffeners needed..Economical tab-lock closure..Sold 100 per case..Self-Seal White Flat Mailers are strong to protect photos and documents during shipping.

Price is  $67.59
Unit of measure 100/Carton
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13.5" x 11" Self-Sealing Fiberboard Mailer, White, 25/Carton (RM3SS25PK) image 1
Item: 578452
Model: RM3SS25PK

Protect paper goods during the shipping process with these Box Partners mailers. The peel and seal closures keep items securely tucked inside each envelope, while the lightweight design keeps mailing costs lower. Each mailer features an opaque white design, shielding important paperwork from view. With durable construction, these Box Partners mailers prevent items from bending or folding while in transit..Strong chipboard mailers protect photos and documents during shipping..Manufactured from lightweight chipboard to save on freight costs..No additional stiffeners needed..Peel-and-seal closure..Pull tab tear strip for easy opening..Ship pamphlets, catalogs and marketing materials in these Box Partners 11 x 13.5-inch white mailers.

Price is  $56.89
Unit of measure 25/Carton
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11.5" x 9" Self-Sealing Fiberboard Mailer, White, 25/Carton (RM2SS25PK) image 1
Item: 578449
Model: RM2SS25PK

Mail magazines, brochures or photos in these Box Partners self-seal flat mailers. The white exteriors provide a perfect background for custom corporate labels and shipping tags, while the convenient peel and seal adhesive closures prevent items from slipping out of each envelope. With lightweight, durable construction, these Box Partners self-seal flat mailers protect your fragile items during the shipping process..Strong chipboard mailers protect photos and documents during shipping..Manufactured from lightweight chipboard to save on freight costs..No additional stiffeners needed..Peel-and-seal closure..Pull tab tear strip for easy opening..Package reading materials and other goods in these Box Partners 9 x 11.5-inch white self-seal flat mailers.

Price is  $31.19
Unit of measure 25/Carton
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9" x 7" Self-Sealing Fiberboard Mailer, White, 200/Carton (RMU97W) image 1
Item: 947738
Model: RMU97W

Protect important documents and flat items with these Self-Sealing Fiberboard Mailers in White. Made from rigid fiberboard to prevent bending and damage, these mailers feature a secure self-sealing adhesive strip for quick, tamper-evident closure. With 200 mailers per carton, they’re ideal for high-volume shipping in offices, retail, and e-commerce environments..9" x 7".White Utility Flat Mailer.200/Case.Save money on shipping with these lightweight, economical mailers!

Price is  $99.59
Unit of measure 200/Carton
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6" x 6" Self-Sealing Fiberboard Mailer, White, 200/Carton (RM9SS) image 1
Item: 447176
Model: RM9SS

The 6" x 6" Self-Seal White Flat Mailers are made from strong chipboard and require no additional stiffeners to protect your documents. Sold 200 per Case..6" x 6".QuickStrip closure is quick and easy to use - simply remove strip and press to close.Rigid chipboard construction protects contents from bending and crushing.Attractive white mailers provide a clean and professional appearance.Convenient tear-tab opens easily without harming contents.Lightweight mailers reduces postage costs.Staples Brand 100% Satisfaction Guaranteed.Dimensions: 6" x 6".Manufactured from .028 white chipboard..Strong chipboard mailers protect photos and documents during shipping..Light-weight to save on postage, no additional stiffeners needed..Convenient peel and seal closure with pull tab tear-strip for easy opening..Sold 200 per case..Self-Seal White Flat Mailers are strong to protect photos and documents during shipping.

Price is  $84.39
Unit of measure 200/Carton
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JAM Paper Self Seal Catalog Envelope 11 1/2" x 14 1/2", Brown Kraft Manila, 50/Pack (13034235i) image 1
Item: 24604630
Model: 13034235i

"JAM Paper Brown Kraft Envelopes with Peel & Seal Closures measure 11.5 x 14.5 inches in size and are made out of smooth, high quality manila paper. Each one of these envelopes opens on the shorter end and features a reliable, easy-to-use, self adhesive peel-and-seal closure to keep the contents placed within secure as they are transported through the mail. A fantastic option for a large number of home and office mailing purposes, these envelopes feature a light yellow-brown kraft color. There size makes them great for mailing standard sized and legal sized documents with no need for folding and creating creases. They can also be used to mail small items, photographs, catalogues, small clothing articles, donations, promotional materials, and much more! This box contains an even total of 50 envelopes. Size: 11.5 in x 14.5 in | Color: Brown Kraft | Quantity: 50".Color: Brown Kraft Manila.Size: 11.5 x 14.5 inches.Quantity: 50 envelopes per pack | Plenty of envelopes for all of your mailing and organization needs.Envelopes feature a self-adhesive strip for quick and easy closure.These envelopes are perfect for commercial & business mailing, personal mailing, invitations, and so much more!

Price is  $24.99
Unit of measure 50/Pack
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9.5" x 6.5" Literature Mailer, Kraft, 50/Bundle (M962BFK) image 1
Item: 947468
Model: M962BFK

Partners Brand Easy-Fold Mailers offers convenience in mailing across items. Scored at multiple depths for flexibility. Quickly package items. No carton set up..Economical kraft construction helps reduce mailing costs..Secure way to send out catalogs, books and stationery..Quickly package items. No carton set up..Adjustable—scored at multiple depths for flexibility..Manufactured from ECT-32-B, kraft corrugated..Partners Brand Kraft Easy-Fold Mailer has economical kraft construction that helps reduce mailing costs.

Price is  $89.29
Unit of measure 50/Bundle
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JAM Paper Self Seal Catalog Envelope, 6" x 9", Brown Kraft Manila, 100/Pack (13034199D) image 1
Item: 24557951
Model: 13034199D

JAM Paper Brown Kraft 6 x 9 Open End Envelopes are made out of smooth, high quality, 24lb paper. This pack contains an even total of 100 envelopes. Each one of these open end envelopes measures 6 x 9 in size, which makes them ideal for mailing brochures, announcements, catalogs, and much more without folding or creasing! These envelopes open on one of the shorter ends and feature straight flaps with reliable, peel and seal closures. Each one features a basic and versatile light kraft brown color. Use these envelopes for wide variety of home and office mailing purposes. Recipients are certain to be impressed by their construction and quality. Size: 6 x 9 in. | Color: Brown Kraft | Quantity: 100/pack.Color: Brown Kraft Manila.Size: 6 x 9 inches.Quantity: 100 envelopes per pack

Price is  $28.29
Unit of measure 100/Pack
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6" x 8" Self-Sealing Fiberboard Mailer, White, 100/Carton (RM1W) image 1
Item: 424941
Model: RM1W

The 6" x 8" Tab-Lock White Flat Mailers are made from strong chipboard and require no additional stiffeners to protect your documents. Sold 100 per Case..Dimensions: 6" x 8".Manufactured from .028 white chipboard..Strong chipboard mailers protect photos and documents during shipping..Light-weight to save on postage, no additional stiffeners needed..Sold 100 per case..Attractive white mailers provide a clean, professional and high quality appearance.Economical tab lock closure keeps contents secure, allows for repeated use and offers indefinite shelf life.Items remain flat during shipment without the added expense of additional stiffeners.Recommended for shipping photos, artwork or important documents.80% recycled.Rigid chipboard construction protects contents from bending and crushing.Economical locking tabs secure contents.Attractive white mailers provide a clean and professional appearance.Lightweight mailers reduces postage costs.Self-Seal White Flat Mailers are strong to protect photos and documents during shipping.

Price is  $46.49
Unit of measure 100/Carton
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JAM Paper 10 x 13 Open End Envelopes w/ Peel & Seal, Holiday Green, 50/Pack (LUX-4897-L17-50) image 1
Item: 24578595
Model: LUX-4897-L17-50

Safeguard important documents! When you can't or shouldn't fold the contents, document envelopes are the professional solution..Open End Catalog Envelopes with Peel & Seal.Size: 10" x 13" / 254mm x 330mm.Holiday Green

Price is  $30.29
Unit of measure 50/Pack
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13.5" x 11"" Self-Sealing Fiberboard Mailer, 3, White, 100/Carton (RM3SS) image 1
Item: 424855
Model: RM3SS

The 11" x 13-1/2" Self-Seal White Flat Mailers are made from strong chipboard and require no additional stiffeners to protect your documents. Sold 100 per Case..Strong chipboard mailers protect photos and documents during shipping..Manufactured from lightweight chipboard to save on freight costs..No additional stiffeners needed..Peel-and-seal closure..Pull tab tear strip for easy opening..Self-Seal White Flat Mailers are strong to protect photos and documents during shipping.

Price is  $87.99
Unit of measure 100/Carton
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20" x 27" Clasp Fiberboard Mailer, White, 50/Carton (RM12SFW) image 1
Item: 495777
Model: RM12SFW

Staples® 20" x 27" Tab-Lock White Flat Mailers are made from strong chipboard and require no additional stiffeners to protect your documents. Sold 50 per Case..20" x 27".Rigid chipboard construction protects contents from bending and crushing.Economical locking tabs secure contents.Attractive white mailers provide a clean and professional appearance.Lightweight mailers reduces postage costs.Dimensions: 20" x 27".Manufactured from .028 white chipboard..Strong chipboard mailers protect photos and documents during shipping..Light-weight to save on postage, no additional stiffeners needed..Economical tab-lock closure..Sold 50 per case..Self-Seal White Flat Mailers are strong to protect photos and documents during shipping.

Price is  $155.89
Unit of measure 50/Carton
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11" x 16" Self-Sealing Fiberboard Mailer, Brown, 100/Carton (RM8) image 1
Item: 447189
Model: RM8

The 11" x 16" Kraft Flat Mailer includes economical locking tabs to secure contents. Mailer includes rigid chipboard construction that protects contents from bending and crushing. Sold 100 per case..Dimensions: 11" x 16".Rigid chipboard construction protects contents from bending and crushing.Economical locking tabs secure contents.Lightweight mailers reduces postage costs.Manufactured from .036 kraft chipboard..Light-weight to save on postage..No additional stiffeners needed..Economical tab-lock closure to secure contents..Sold 100 per case..Self-Seal White Flat Mailers are strong to protect photos and documents during shipping.

Price is  $90.19
Unit of measure 100/Carton
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12.5" x 12.5" Self-Sealing Fiberboard Mailer, White, 100/Carton (RM2G) image 1
Item: 473223
Model: RM2G

Protect flat or delicate items with confidence using these 12.5" x 12.5" Self-Sealing Fiberboard Mailers in White. Made from rigid fiberboard to prevent bending and creasing, these mailers are ideal for shipping documents, photos, and other important materials. The self-sealing adhesive closure ensures secure, tamper-evident packaging, and each carton includes 100 mailers—perfect for offices, retailers, and e-commerce businesses..Strong chipboard mailers protect photos and documents during shipping..Manufactured from .020 white chipboard..Lightweight to save on postage..No additional stiffeners needed..Gusset expands to hold items up to 1" wide..Peel and seal closure..Pull tab tear strip for easy opening.

Price is  $105.79
Unit of measure 100/Carton
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12.25" x 9.75" Self-Sealing Fiberboard Mailer, White, 200/Carton (RMU129W) image 1
Item: 947732
Model: RMU129W

Protect important documents and flat items with these Self-Sealing Fiberboard Mailers in White. Made from rigid fiberboard to prevent bending and damage, these mailers feature a secure self-sealing adhesive strip for quick, tamper-evident closure. With 200 mailers per carton, they’re ideal for high-volume shipping in offices, retail, and e-commerce environments..Overall Mailer Dimensions: 12 1/4"W x 9 3/4"L.Self-seal adhesive strip seals mailer securely and provides a tamper-evident closure.White Utility Flat Mailer.200/Carton.Attractive white mailers provide a clean and professional appearance.Lightweight mailers reduces postage costs.Save money on shipping with these lightweight, economical mailers!

Price is  $141.89
Unit of measure 200/Carton
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10" x 10" x 4" Literature Mailers, Kraft, 50/Bundle (MFL10104K) image 1
Item: 1499831
Model: MFL10104K

Partners Brand Deluxe Literature Mailer provides maximum protection for your most important documents. Ships and stores flat to save space..Feature protective side flaps and front outside tuck closure..Maximum protection for your most important documents..Manufactured from strong ECT-32-B, kraft corrugated..Assembles in seconds without tape, glue or staples..Partners Brand Kraft Deluxe Literature Mailers feature protective side flaps and front outside tuck closure.

Price is  $174.09
Unit of measure 50/Bundle
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Staples Gummed Invitation Envelopes, 5 3/4" x 4 3/8", White, 250/Box (266767N) image 1
Item: 266767
Model: ST266767N-CC

Keep correspondence clean and undamaged with these white gummed-closure invitation envelopes. Each one features a heavily gummed flap that lets you apply moisture for a tight seal, while the white coloring offers high contrast for labels and text, ensuring easy reading. These Staples gummed-closure invitation envelopes are built with 24-pound white wove material for durability..Invitation envelope keeps your documents flat in the mail.Envelope size: 4 3/8"H x 5 3/4"W.The gummed flap closure keeps your documents secured inside the envelope.V-flap closure.White and made of paper.250 envelopes per box.Great to use to store items such as invitations.Ensure that invitations, cards and other papers reach recipients in good condition by mailing them in these Staples white gummed-closure invitation envelopes.

Price is  $28.99
Unit of measure 250/Box
Next-Day Delivery by tomorrow
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JAM Paper Self Seal Catalog Envelope, 11 1/2" x 14 1/2", Brown Kraft Manila, 100/Pack (13034235D) image 1
Item: 24558000
Model: 13034235D

JAM Paper Brown Kraft Envelopes with Peel & Seal Closures measure 11.5 x 14.5 inches in size and are made out of smooth, high quality manila paper. Each one of these envelopes opens on the shorter end and features a reliable, easy-to-use, self adhesive peel-and-seal closure to keep the contents placed within secure as they are transported through the mail. A fantastic option for a large number of home and office mailing purposes, these envelopes feature a light yellow-brown kraft color. There size makes them great for mailing standard sized and legal sized documents with no need for folding and creating creases. They can also be used to mail small items, photographs, catalogues, small clothing articles, donations, promotional materials, and much more! This box contains an even total of 100 envelopes. Size: 11.5 in x 14.5 in | Color: Brown Kraft | Quantity: 100.Color: Brown Kraft Manila.Size: 11.5 x 14.5 inches.Quantity: 100 envelopes per pack

Price is  $56.59
Unit of measure 100/Pack
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9" x 6 1/4" x 3" Deluxe Literature Mailers, 50/Bundle (MFL963) image 1
Item: 630471
Model: MFL963

Partners Brand Deluxe Literature Mailer provides maximum protection for your most important documents. Ships and stores flat to save space..Feature protective side flaps and front outside tuck closure..Front locking tabs ensure maximum protection for your most important documents..Side flaps increase stacking strength..Manufactured from strong ECT-32-B, white corrugated..Assembles in seconds without tape, glue or staples..Partners Brand Deluxe Literature Mailers feature protective side flaps and front outside tuck closure.

Price is  $93.99
Unit of measure 50/Bundle
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1

About Stay Flat Mailing Envelopes

Stay flat mailing envelopes are specifically designed to protect flat items during shipping, ensuring they arrive in pristine condition. These envelopes are ideal for sending photographs, documents, and other important materials that require a rigid structure to prevent bending or creasing.

With a variety of sizes and styles available, stay flat mailing envelopes cater to diverse shipping needs. Their sturdy construction and self-adhesive closures make them a convenient choice for both personal and professional use, providing peace of mind when mailing valuable items.

When selecting stay flat mailing envelopes, consider features such as size, material, and closure type. Many options come with self-adhesive seals for easy and secure sealing, while others may feature tab-lock designs for added protection against accidental openings during transit.

Additionally, look for envelopes made from durable materials like kraft or rigid paper to ensure maximum protection. Choosing the right size is also crucial, as it allows for a snug fit that minimizes movement and potential damage to the contents inside.

What are stay flat mailing envelopes used for?

  • Stay flat mailing envelopes are used to securely ship flat items such as photographs, documents, and artwork. Their rigid design prevents bending, ensuring that contents arrive undamaged.

Do stay flat mailing envelopes come in different sizes?

  • Yes, stay flat mailing envelopes are available in various sizes to accommodate different items. This variety allows users to select the perfect fit for their specific mailing needs.

Are stay flat mailing envelopes waterproof?

  • While many stay flat mailing envelopes are made from durable materials, they are not typically waterproof. It’s advisable to use additional protective layers if moisture is a concern during shipping.

Can stay flat mailing envelopes be reused?

  • Stay flat mailing envelopes are generally designed for single use, especially those with self-adhesive closures. However, if the envelope is in good condition and the seal is intact, it may be reused for non-critical shipments.

How do you seal stay flat mailing envelopes?

  • Most stay flat mailing envelopes feature self-adhesive closures that simply require peeling off the backing and pressing the flap down to seal. This ensures a secure closure without the need for additional tape or glue.

Are stay flat mailing envelopes eco-friendly?

  • Many stay flat mailing envelopes are made from recyclable materials, making them a more eco-friendly option compared to traditional padded mailers. Always check the packaging for recycling information to ensure proper disposal.