JAM Paper A10 Colored Invitation Envelopes, 6 x 9.5, Green Recycled, Bulk 250/Box (35633H)~#|#~sp132864482_sc7JAM Paper A10 Colored Invitation Envelopes, 6 x 9.5, Green Recycled, Bulk 250/Box (35633H)~#|#~sp132864481_sc7
Item: 1589988
Model: 35633H
No reviews yet
Price is $161.39
Unit of measure 250/Box
Free delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper A8 Booklet Envelope 5 1/2" x 8 1/8", Green, 100/Pack (95625d)~#|#~AE69C7FE-FA58-4D8E-9984942252272907_sc7JAM Paper A8 Booklet Envelope 5 1/2" x 8 1/8", Green, 100/Pack (95625d)~#|#~63487A0B-4FB6-45FA-A0A82B7C071A65C9_sc7
Item: 24604536
Model: 95625d
No reviews yet
Price is $32.99
Unit of measure 100/Pack
Delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper #6 3/4 Booklet Envelope 3 5/8" x 6 1/2", Pastel Blue, 100/Pack (557612641d)~#|#~1130459F-6CEE-4BC6-85C389430D67FBE2_sc7JAM Paper #6 3/4 Booklet Envelope 3 5/8" x 6 1/2", Pastel Blue, 100/Pack (557612641d)~#|#~65D56F2E-295B-4E71-886FA4F90A76C999_sc7
Item: 24604640
Model: 557612641d
No reviews yet
Price is $22.99
Unit of measure 100/Pack
Delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper A6 Booklet Envelope 4 3/4" x 6 1/2", Natural Linen, 100/Pack (74083d)~#|#~45A6E412-2CC5-4447-A19BA39277A894B9_sc7JAM Paper A6 Booklet Envelope 4 3/4" x 6 1/2", Natural Linen, 100/Pack (74083d)~#|#~D5477E64-77E4-49CC-8706E9443EEBDCA9_sc7
Item: 24604571
Model: 74083d
Price is $22.99
Unit of measure 100/Pack
Delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper® Plastic Envelopes with Button and String Tie Closure, Index Booklet, 5.5 x 7.5, Smoke Gray, 12/Pack (920B1SM)~#|#~m000068460_sc7
Item: 262991
Model: 920B1SM
Price is $32.19
Unit of measure 12/Pack Price per unit $2.68/Envelope
Delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper 9 x 12 Booklet Colored Envelopes, Ultra Lime Green, 50/Pack (5156771i)~#|#~sp4211424_sc7JAM Paper 9 x 12 Booklet Colored Envelopes, Ultra Lime Green, 50/Pack (5156771i)~#|#~sp4211423_sc7
Item: 2478032
Model: 5156771I
No reviews yet
Price is $38.49
Unit of measure 50/Pack
Free delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper #6 1/4 Booklet Envelope 3 1/2" x 6", Goldenrod, 50/Pack (WS-0101-50)~#|#~180259A2-1CE1-41CA-AA653491C9400996_sc7
Item: 24604515
Model: WS-0101-50
No reviews yet
Price is $13.95
Unit of measure 50/Pack
Delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper 9 x 12 Booklet Envelopes, Green Recycled, 50/Pack (154124i)~#|#~sp4211459_sc7JAM Paper 9 x 12 Booklet Envelopes, Green Recycled, 50/Pack (154124i)~#|#~sp4211458_sc7
Item: 2478041
Model: 154124I
No reviews yet
Price is $49.59
Unit of measure 50/Pack
Free delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX 6 x 9 Booklet Envelopes, 500/Box, Silver Metallic (4820-06-500)~#|#~m001149716_sc7
Item: 1028628
Model: 4820-06-500
No reviews yet
Price is $153.19
Free delivery by Wed, Feb 18
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper #9 Booklet Envelopes, 3 7/8" x 8 7/8", Cream, 50/Pack (R2169-50)~#|#~C1CB9438-AF07-44D4-801CFA11CBCFD5E1_sc7
Item: 24604510
Model: R2169-50
No reviews yet
Price is $15.95
Unit of measure 50/Pack
Delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX Self Seal Booklet Envelope, 6" x 9", Navy, 50/Pack (LUX-4820-103-50)~#|#~sp14807336_sc7
Item: 24260714
Model: LUX-4820-103-50
No reviews yet
Price is $26.99
Unit of measure 50/Pack
Delivery by Wed, Feb 18
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX Self Seal #10 Booklet Envelope 6" x 9", Natural, 1000/Pack (6025-01-1000)~#|#~sp14807416_sc7
Item: 24261223
Model: 6025-01-1000
No reviews yet
Price is $140.99
Unit of measure 1000/Pack
Free delivery by Wed, Feb 18
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper 9 x 12 Booklet Envelopes, Green Recycled, 100/Pack (154124c)~#|#~sp4211459_sc7JAM Paper 9 x 12 Booklet Envelopes, Green Recycled, 100/Pack (154124c)~#|#~sp4211458_sc7
Item: 2478146
Model: 154124C
No reviews yet
Price is $48.59
Unit of measure 100/Pack
Free delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper A1 Booklet Envelope, 3 5/8" x 5 1/8", White, 50/Pack (4865-SN-50)~#|#~DC651BBF-DA9C-48A9-971B28E4D5B416FD_sc7JAM Paper A1 Booklet Envelope, 3 5/8" x 5 1/8", White, 50/Pack (4865-SN-50)~#|#~F2CCB935-8910-4734-80289C700DDD84E0_sc7
Item: 24604580
Model: 4865-SN-50
No reviews yet
Price is $14.95
Unit of measure 50/Pack
Delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper Booklet Envelopes with Peel & Seal Closure, 9.5 x 12.5, White, 500/Box (367934168)~#|#~sp74204098_sc7JAM Paper Booklet Envelopes with Peel & Seal Closure, 9.5 x 12.5, White, 500/Box (367934168)~#|#~sp74203863_sc7
Item: 24295254
Model: 367934168
No reviews yet
Price is $540.69
Unit of measure 500/Pack
Free delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper A8 Booklet Envelope 5 1/2" x 8 1/8", Navy Blue, 100/Pack (LEBA767d)~#|#~98A19140-CEAE-41C5-B0298832D154C6D7_sc7JAM Paper A8 Booklet Envelope 5 1/2" x 8 1/8", Navy Blue, 100/Pack (LEBA767d)~#|#~E61D7442-4F60-4E1C-8D6B9B87C5F17C4E_sc7
Item: 24604607
Model: LEBA767d
No reviews yet
Price is $37.99
Unit of measure 100/Pack
Free delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper #10 Business Foil Envelopes with Peel & Seal Closure, 4 1/8" x 9 1/2", Silver, 25/Pack (1323306)~#|#~m004671920_sc7JAM Paper #10 Business Foil Envelopes with Peel & Seal Closure, 4 1/8" x 9 1/2", Silver, 25/Pack (1323306)~#|#~m004671919_sc7
Item: 260896
Model: 1323306
No reviews yet
Price is $41.89
Unit of measure 25/Pack
Free delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper 9 x 12 Metallic Booklet Envelopes, Stardream Silver, Bulk 500/Box (85818d)~#|#~sp4211590_sc7
Item: 2477990
Model: 85818D
No reviews yet
Price is $939.99
Unit of measure 500/Box
Free delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper #10 Booklet Envelope 4 1/8" x 9 1/2", Orange, 100/Pack (5156477d)~#|#~ACD7D0B1-A337-4A3D-B887B89EF59CB2C0_sc7JAM Paper #10 Booklet Envelope 4 1/8" x 9 1/2", Orange, 100/Pack (5156477d)~#|#~78392B86-C9AB-4F5C-986BF1E8A1349B91_sc7
Item: 24604451
Model: 5156477d
No reviews yet
Price is $27.99
Unit of measure 100/Pack
Delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper Booklet Envelope 10" x 13", Chartreuse, 50/Pack (212813512i)~#|#~C78EDFF6-828F-48DC-8C8F9E88970076C5_sc7JAM Paper Booklet Envelope 10" x 13", Chartreuse, 50/Pack (212813512i)~#|#~956474A1-24E4-4B51-83F136C89EF25036_sc7
Item: 24604574
Model: 212813512i
No reviews yet
Price is $46.99
Unit of measure 50/Pack
Free delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper 6.125 x 9.5 Booklet Foil Envelopes with Self-Adhesive Closure, Silver, 100/Pack (01323287B)~#|#~m004671912_sc7JAM Paper 6.125 x 9.5 Booklet Foil Envelopes with Self-Adhesive Closure, Silver, 100/Pack (01323287B)~#|#~m004671911_sc7
Item: 260955
Model: 01323287B
No reviews yet
Price is $127.99
Unit of measure 100/Box
Free delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper #6 1/4 Booklet Envelope 3 1/2" x 6", Goldenrod, 50/Pack (R253-50)~#|#~683B1C8F-4602-4465-86FA3B022ED8CE20_sc7
Item: 24604622
Model: R253-50
No reviews yet
Price is $30.40
Unit of measure 50/Pack
Delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper A2 Booklet Envelope 4 3/8" x 5 3/4", Baby Pink, 100/Pack (155623d)~#|#~6DA8EBE2-B55D-4E1D-926DFA2E36700F51_sc7JAM Paper A2 Booklet Envelope 4 3/8" x 5 3/4", Baby Pink, 100/Pack (155623d)~#|#~04DD728C-1884-4FF7-9CF120437D5C10D6_sc7
Item: 24604631
Model: 155623d
No reviews yet
Price is $32.99
Unit of measure 100/Pack
Delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper Cellophane Envelope with Self-Adhesive Closure, 5.0625 x 7.1875, Green, 100/Pack (2783135)~#|#~m000969557_sc7
Item: 235573
Model: 2783135
No reviews yet
Price is $48.99
Unit of measure 100/Pack
Free delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper A8 Booklet Envelope 5 1/2" x 8 1/8", Dark Grey, 100/Pack (36396435d)~#|#~4DD09774-500F-44D5-8C0B7B16F70AB1BF_sc7JAM Paper A8 Booklet Envelope 5 1/2" x 8 1/8", Dark Grey, 100/Pack (36396435d)~#|#~ABFA9D82-125E-4583-BA1B368A6DED3964_sc7
Item: 24604611
Model: 36396435d
No reviews yet
Price is $37.99
Unit of measure 100/Pack
Free delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper #6 1/4 Booklet Envelope 3 1/2" x 6", Pastel Canary, 50/Pack (R252-50)~#|#~9EDC1D56-7DB3-4F56-B1AA2BF75C24A717_sc7
Item: 24604512
Model: R252-50
No reviews yet
Price is $30.40
Unit of measure 50/Pack
Delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper A9 Booklet Envelope 5 3/4" x 8 3/4", Black Linen, 100/Pack (900906807d)~#|#~71E561C5-FF64-4E54-8A6D810AD5C89EBE_sc7JAM Paper A9 Booklet Envelope 5 3/4" x 8 3/4", Black Linen, 100/Pack (900906807d)~#|#~B3CC00D7-19AA-47A4-ACD0EAFD99886429_sc7
Item: 24604453
Model: 900906807d
No reviews yet
Price is $62.99
Unit of measure 100/Pack
Free delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper 9 x 12 Booklet Envelopes, Navy Blue, 50/Pack (263916011i)~#|#~sp121512570_sc7JAM Paper 9 x 12 Booklet Envelopes, Navy Blue, 50/Pack (263916011i)~#|#~sp121512569_sc7
Item: 2478160
Model: 263916011I
No reviews yet
Price is $92.19
Unit of measure 50/Pack
Free delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX 9 x 12 Booklet Envelopes 50/Pack, Blush (LUX-4899-39-50)~#|#~sp5822112_sc7LUX 9 x 12 Booklet Envelopes 50/Pack, Blush (LUX-4899-39-50)~#|#~sp5873984_sc7
Item: 23996090
Model: LUX-4899-39-50
No reviews yet
Price is $36.25
Unit of measure 50/Pack
Free delivery by Wed, Feb 18
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper #10 Booklet Foil Envelopes with Self-Adhesive Closure, 4.125 x 9.5, Blue, 100/Pack (01327705B)~#|#~1F47D90D-83F9-4485-A854C52E72972771_sc7
Item: 260951
Model: 01327705B
No reviews yet
Price is $127.99
Unit of measure 100/Box
Free delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper A2 Booklet Envelope 4 3/8" x 5 3/4", Black Linen, 100/Pack (64345d)~#|#~5CD942DC-7DF8-47F3-B317B9527A15660F_sc7JAM Paper A2 Booklet Envelope 4 3/8" x 5 3/4", Black Linen, 100/Pack (64345d)~#|#~C5D0A5D4-7E50-499C-90E5BD6A8F82665D_sc7
Item: 24604570
Model: 64345d
No reviews yet
Price is $32.99
Unit of measure 100/Pack
Delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper Booklet Envelope 10" x 13", Chartreuse Green, 100/Pack (212813512d)~#|#~5755124F-4043-4354-A0751DE0D9A52D5B_sc7JAM Paper Booklet Envelope 10" x 13", Chartreuse Green, 100/Pack (212813512d)~#|#~31907986-9492-45D1-8107EF722BC3C727_sc7
Item: 24604647
Model: 212813512d
No reviews yet
Price is $120.99
Unit of measure 100/Pack
Free delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper 10 x 13 Booklet Translucent Vellum Envelopes, Clear, 100/Pack (900840420C)~#|#~m006965529_sc7JAM Paper 10 x 13 Booklet Translucent Vellum Envelopes, Clear, 100/Pack (900840420C)~#|#~m006965528_sc7
Item: 261771
Model: 900840420C
No reviews yet
Price is $129.89
Unit of measure 100/Box
Free delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX 6 x 9 Booklet Envelopes 500/Pack, Blush (LUX-4820-39-500)~#|#~sp5822112_sc7LUX 6 x 9 Booklet Envelopes 500/Pack, Blush (LUX-4820-39-500)~#|#~sp5873990_sc7
Item: 23995346
Model: LUX-4820-39-500
No reviews yet
Price is $110.22
Unit of measure 500/Pack
Free delivery by Wed, Feb 18
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper 5 x 6.125 Booklet Foil Envelopes with Self-Adhesive Closure, Red Holly, 100/Pack (21326676B)~#|#~m000067466_sc7
Item: 260932
Model: 21326676B
No reviews yet
Price is $108.99
Unit of measure 100/Box
Free delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
LUX 6 x 9 Booklet Envelopes, 50/Box, Silver Metallic (4820-06-50)~#|#~m001149716_sc7
Item: 1030031
Model: 4820-06-50
No reviews yet
Price is $28.29
Delivery by Wed, Feb 18
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper Peel & Seal Booklet Envelope, 9" x 12", White, 50/Pack (356828785I)~#|#~sp121512635_sc7JAM Paper Peel & Seal Booklet Envelope, 9" x 12", White, 50/Pack (356828785I)~#|#~sp121512634_sc7
Item: 24141867
Model: 356828785I
Price is $29.89
Unit of measure 50/Pack
Delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper Open End Booklet Envelopes, Peel & Press, 9" x 12", Bright White, 250/Pack (12328-250)~#|#~sp223033184_sc7JAM Paper Open End Booklet Envelopes, Peel & Press, 9" x 12", Bright White, 250/Pack (12328-250)~#|#~sp223033183_sc7
Item: 24578344
Model: 12328-250
No reviews yet
Price is $67.79
Unit of measure 250/Pack
Free delivery by Mon, Feb 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Over 30
JAM Paper 9 x 12 Booklet Colored Envelopes, Sea Blue Recycled, 25/Pack (5156773)~#|#~sp123307772_sc7JAM Paper 9 x 12 Booklet Colored Envelopes, Sea Blue Recycled, 25/Pack (5156773)~#|#~sp123307771_sc7
JAM Paper 9 x 12 Booklet Colored Envelopes, Sea Blue Recycled, 25/Pack (5156773) is Out of stock
Item: 261209
Model: 5156773
No reviews yet
Price is $28.29
Unit of measure 25/Pack

Affordable mailing solution

Booklet envelopes are a great option for shipping important documents. Whether you're sending out necessary paperwork to customers or mailing promotional materials to potential clients, booklet envelopes provide a secure and efficient way to transport your documents safely. Plus, they're an affordable choice that won't break the bank. At Staples, we carry a wide selection of booklet envelopes in bulk packs, so you can find the perfect option at an affordable price point.

Spacious and secure shipping

At Staples, we offer a variety of booklet envelopes in various sizes and styles. Choose from open-end or clasp-style designs that feature either side seams or center seams for added security. All of the booklet envelopes in our selection are designed with durable construction, so you can be sure your items arrive intact when shipped through the mail. Booklet envelopes provide plenty of space to store bulky items like brochures, catalogs, magazines and more. The extra room also makes them ideal for sending multiple sheets of paper within one envelope without having to fold them up or risk damage during transit. With our selection of different sizes and styles available at Staples, there's sure to be something that fits your needs perfectly!


FAQ

What is a booklet envelope?

A booklet envelope is designed to hold and protect documents, brochures, or other paper items that are too large or bulky to fit into standard envelopes. They typically open on the longer side and come in various sizes to accommodate different materials.

What are booklet envelopes used for?

Booklet envelopes are used for mailing multi-page documents, catalogs, large brochures or any items requiring a flat, more flexible space than traditional envelopes. They make inserting and removing contents easier without bending or folding, which is especially helpful for business documents or presentations.

Are booklet envelopes and catalog envelopes different?

Yes, booklet envelopes and catalog envelopes are different. The main difference is the orientation of the opening. Booklet envelopes open on the long side, while catalog envelopes open on the short side. This makes booklet envelopes ideal for inserting and removing materials that are bound on the longer edge, whereas catalog envelopes are better for thicker, heavier items that can be stacked inside.