#9 Envelopes - 3 7/8" x 8 7/8"
- Pressure Sensitive Adhesive
- #9 business envelopes are suitable for all your mailing needs
- PACKAGING MAY VARY, SAME GREAT PRODUCT.
- US #9 business envelopes are suitable for many mailing projects
- US #9 business envelopes are suitable for many mailing projects
- Made from white 24 lb. paper for durability
- Envelopes are great for mailing letters and documents
- Made from 24 lbs. white wove paper for durability
- US #9 business envelopes are suitable for many mailing projects
- Made from white 24 lb. wove paper for durability
- #9 business envelopes are suitable for many mailing projects
- Made from white wove 24 lbs. paper for durability
- US #9 business envelopes are suitable for many mailing projects
- Made from white wove 24 lb. paper for durability
- Comes in 24lb. White w/ Security Tint
- Dimensions: 3.875"L x 8.875"W
- US #9 business envelopes are suitable for many mailing projects
- Made from white wove 24 lb. paper for durability
- #9 Window Envelopes (3 7/8 x 8 7/8) are commonly used as a reply envelope for invoice/business mailings, sent to recipients inside #10 Envelopes in order to mail something back to the sender
- Comes in White w/ Simple Seal, 24lb. Text Paper
- Comes in 24lb. White w/ Security Tint
- Dimensions: 3.875"L x 8.875"W
- #9 Regular Envelopes are ideal for all business/professional/personal correspondence
- Comes in Natural - 100% Recycled, 80lb. Text Paper
- US #9 business envelopes are suitable for all your mailing needs
- Made from white 24 lb. paper for durability
- Business envelopes are a cost-effective solution for bulk mailing
- White paper envelope weight: 24 lbs.
- Dimensions: 3.875"L x 8.875"W
- Comes in Natural Linen
- #9 Regular Envelopes are ideal for all business/professional/personal correspondence
- Comes in Goldenrod, 60lb. Text Paper
- Dimensions: 3.875"L x 8.875"W
- Comes in 24lb. Bright White
- #9 Regular Envelopes are ideal for all business/professional/personal correspondence
- Comes in Pastel Gray, 60lb. Text Paper
- US #9 business envelopes are suitable for all your mailing needs
- Made from white 24 lb. paper for durability
- #9 Window Envelopes are perfect for mailing checks/invoices/letterhead/personal letters/statements/direct mail
- Comes in White w/Security Tint, 24lb. Text Paper
- Comes in Gold Metallic, 80lb. Text Paper
- Dimensions: 3 7/8"L x 8 3/8"W
- Comes in Gold Metallic, 80lb. Text Paper
- Airline ticket envelopes (3 7/8" x 8 1/2") - gold metallic (50 Qty.)
- Slimline Invitation Envelopes (3 7/8 x 8 7/8) are our most popular envelopes for invitations/announcements/greeting cards/photos/notecards
- Comes in Midnight Black, 80lb. Text Paper
- Comes in 24lb. White w/ Security Tint
- Dimensions: 3.875"L x 8.875"W
- #9 Regular Envelopes (3 7/8 x 8 7/8) are commonly used as a reply envelope for invoice/business mailings, sent to recipients inside #10 Envelopes in order to mail something back to the sender
- Comes in Bright Orange, 24lb. Text Paper
- #9 Remittance Envelopes are ideal for all business/professional/personal correspondence
- Comes in Pastel Blue, 60lb. Text Paper
- Slimline Invitation Envelopes (3 7/8 x 8 7/8) are our most popular envelopes for invitations/announcements/greeting cards/photos/notecards
- Comes in 80lb. Bright White, 80lb. Text Paper
- Dimensions: #9 Regular Envelopes / 3 7/8 in. x 8 7/8 in. / 3.875" x 8.875" / 98mm x 225mm
- Comes in Grocery Bag Brown
Trending now
Envelopes for office and personal use come in many different shapes and sizes. For many businesses, envelopes play an integral role in daily operations. They are used for return mail and to relay sensitive information securely. Size 9 or #9 envelopes are heavily relied upon by businesses because they fit easily inside of the larger #10 envelopes (4 1/8" x 9 ½”). These envelopes are the perfect choice for receiving return mail, like payments, donations and other reply mail. Read on to learn more about why you should consider including size 9 envelopes on your next order of office supplies.
What Are Size 9 Envelopes Used For?
Size 9 envelopes fit perfectly in their larger counterparts, #10 envelopes, making them perfect for return or reply mail. Businesses that send messages that require a reply or return mail on behalf of the recipient will typically use the #9 envelope size. Credit card companies, insurance firms and non-profits often include these envelopes in their messages to make it easier for the recipient to mail a payment or donation. Magazines may send out size 9 envelopes with their latest issue if it's time to subscribe again.
What Features Do Size 9 Envelopes Have?
Depending on what a business’ needs are, there are many different size 9 envelopes to choose from. Staples offers a range of color and design options for businesses who are looking to put a personal touch on their correspondence with clients. Some #9 envelopes even come with security features such as tinted plastic films to ensure that a customer’s sensitive information is secure in transit. Read more about these common size 9 envelope features below.
Tinted Security Windows
Many size 9 envelopes designed for sending documents that contain sensitive information feature tinted security windows. A business might provide customers with tinted envelopes because they offer a means of theft deterrent. #9 envelopes with a security tint are a good option for debt collectors and non-profits alike because people are less likely to tamper with an envelope if they do not suspect there’s money involved. For many companies, this is a best practice to incorporate, because it ensures that there are no hiccups while requesting payments or sensitive information through the mail.
Strong Adhesive Seals
Staples offers a variety of size 9 envelopes and seal options. The most commonly used style is a traditional gum seal. Gum seal envelopes have a water-soluble gum strip that you moisten to seal. Many modern size 9 envelopes have adhesive strip seals for those who require an added layer of security. Self-seal and moistenable glue #9 envelopes come with a strong adhesive that’s ready to peel and go. These built-in seals are similar to shipping and packing tape and erase any fears one might have about their mail opening in transit.
Many Colorful Options to Choose From
The #9 envelope size comes in many colors for professionals and businesses that want to add a more personal or creative touch to their correspondence with customers. At Staples, you can choose from orange, pink, beige and everything in between. These fun size 9 envelope shades help add a personal touch to any business’ marketing campaigns - a perfect choice to consider when the time comes for customers to resubscribe!