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Great for organizing and storing letters, documents, photos or records. Great for home, interoffice or mailing. Perfect for everyday home and business use, clasp envelopes are made from heavyweight 28 lb.

28lb stock; manufactured from tough, woven paper extends the tampering resistance of this envelope, the durable, standing up to normal postal wear and tear without damage, the brown kraft material will insure privacy of the envelopes contents, durable construction like 28lb paper stock, .9
9x12 self-seal kraft envelopes; ideal for everyday business use and professional mailings, each box of our premium 9x12 mailing envelopes with the peel and seal closure provide great value 100 envelope supply, for the best value on the market! Durable multi-purpose; ideal for mailing catalogues, documents, magazines, promotional material, brochures and more, direct mail, Aimoh’s Catalog Envelopes can be easily hand addressed or customized with business information.



These 9x12 envelopes with a self seal redi-tac clasp eliminate USPS charges for metal parts; reusable & thrifty; made of 28 lb kraft paper; 100/box.



Perfect size for standard 8. 5’’ x 11’’ letter paper, wide opening saves times when stuffing up to 60 sheets of letter paper securely. Allows for organized storage of personal and company documents due to its large size.

100 9 x 12 catalog envelopes in every pack for a long lasting supply, easy bulk mailing and everyday business correspondence!9x12 catalog envelopes; aimoh’s white 9x12 security envelopes combine a professional security tint pattern, large size for business documents and premium quality for the best 9x12 envelopes on the market.
For 8. 5x11 documents; large 9x12 size and strong quick-seal closure security tinted envelopes, perfect for photos, catalogs, thicker, larger documents and other business mailings. Security tint pattern; ideal for secure business mailing and sensitive correspondence, each 9x12 envelope contains a super secure, security tint pattern to protect contents, information and data when mailing.

1. Quality Park
#ad
100 per Box QUA37890, Storing or Mailing Documents, Great for Filing, 28 lb Brown Kraft, Quality Park 9 x 12 Clasp Envelopes with Deeply Gummed Flaps
#adQuality Park #ad - Conveniently packed in large count to reduce frequency of purchasing. Reusable, office, school, double prong metal clasp is durable and designed for repeated use and eyelets are reinforced .Great for organizing and storing letters, documents, photos or records. Great for home, interoffice or mailing. Perfect for everyday home and business use, clasp envelopes are made from heavyweight 28 lb.
More information #ad
In addition to the clasp closure, these envelopes have a moisture activated seal with deep gumming on the flap to create a permanent seal. Brown kraft stock to give contents extra protection during mailing, storage and handling.Brand | Quality Park #ad |
Manufacturer | Quality Park #ad |
Height | 3.75 Inches |
Length | 14 Inches |
Weight | 4 Pounds |
Width | 9.1 Inches |
Part Number | QUA37890 |
Model | 37890 |
More information #ad
2. Aimoh
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100 Count, 9x12 Inch 38300, 9 X 12 Self-Seal Brown Kraft Catalog Mailing Envelopes, 28lb
#adAimoh #ad - 9x12 kraft envelopes; aimoh’s catalog envelopes combine tough 28lb golden kraft paper stock, strong self-sealing SELF-SEAL Closure for the best catalog envelopes on the market, perfect for large documents and all business correspondence. Self adhesive seal; aimoh's 9 x 12 envelopes are designed with an ultra strong SELF-SEAL adhesive strip to create a full, ideal for mailing thicker catalogues, super secure seal across each envelope's width that won't easily open or tear, brochures and magazines.28lb stock; manufactured from tough, woven paper extends the tampering resistance of this envelope, the durable, standing up to normal postal wear and tear without damage, the brown kraft material will insure privacy of the envelopes contents, durable construction like 28lb paper stock, .9
More information #ad
99x12 self-seal kraft envelopes; ideal for everyday business use and professional mailings, each box of our premium 9x12 mailing envelopes with the peel and seal closure provide great value 100 envelope supply, for the best value on the market! Durable multi-purpose; ideal for mailing catalogues, documents, magazines, promotional material, brochures and more, direct mail, Aimoh’s Catalog Envelopes can be easily hand addressed or customized with business information.
Brand | Aimoh #ad |
Manufacturer | Aimoh #ad |
Weight | 3.9 Pounds |
Part Number | AE-912CGS |
More information #ad
3. Quality Park
#ad
Gummed Flap, 100/Box QUA37790, Quality Park 9" x 12" Clasp Envelopes, Brown Kraft
#adQuality Park #ad - Brown kraft stock gives contents extra protection during mailing, storage and handling. Designed for repeated use: Double prong metal clasp is durable and eyelets are reinforced. 100 per box: always have a good supply on hand with this 100 count box.More information #ad
All-purpose: perfect size for mailing and storing a variety of documents, especially letter-sized documents when folding is undesirable. Permanent seal: in addition to the clasp closure, the deep gumming on the flap can create a permanent seal. Heavy duty: extra durable, 32 lb.Brand | Quality Park #ad |
Manufacturer | Quality Park #ad |
Height | 4 Inches |
Length | 14.9 Inches |
Weight | 0.06 Pounds |
Width | 9.3 Inches |
Part Number | QUA37790 |
Model | QUA37790 |
More information #ad
4. Mead
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Mead Envelopes, 100/Box CO790, Brown Kraft, 9" x 12", Clasp
#adMead #ad - Extra heavy-duty opaque 32 lb. 9 x 12 inches; 100 envelopes per box. Durable multi-purpose envelope; dual purpose seal allows for multiple uses; use the moisture activated gummed seal for mailing or the strong metal clasp for repeated use and storage purposes.More information #ad
Brown kraft material provides privacy of contents.Brand | Mead #ad |
Manufacturer | Mead #ad |
Height | 14.88 Inches |
Length | 3.75 Inches |
Width | 9.25 Inches |
Part Number | CO790m |
Model | CO790m |
More information #ad
5. Quality Park
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Quality Park 9 x 12 Postage Saving ClearClasp Envelopes, 28 lb Kraft Paper, 100 per Box QUA43568, with Reusable Redi-Tac Closure & Gummed Flap
#adQuality Park #ad - Reseal your clearclasp envelope with Redi-Tac seal as many times as needed for circulating interoffice mail; just press and go. Heavyweight 28 lb kraft paper manila envelopes are opaque to protect private contents; strong enough for bulk mailing or organizing the office.These 9x12 envelopes with a self seal redi-tac clasp eliminate USPS charges for metal parts; reusable & thrifty; made of 28 lb kraft paper; 100/box.
More information #ad
A deeply gummed yellow envelope flap is laid thick with moisture-activated adhesive; creates a firm seal you can trust in the mail. A great value; large envelopes are an economical way to send manuscripts, certificates or other documents you’d rather mail flat.Brand | Quality Park #ad |
Manufacturer | Quality Park #ad |
Height | 3 Inches |
Length | 12.2 Inches |
Weight | 4 Pounds |
Width | 9.75 Inches |
Part Number | QUA43568 |
Model | QUA43568 |
More information #ad
6. Amazon Basics
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9x12 Inch, Amazon Basics Catalog Mailing Envelopes, Peel & Seal, Brown Kraft, 100-Pack, AMZP13
#adAmazon Basics #ad - Ideal for mailing catalogs, brochures, booklets, and multi-page documents. Measures 9 by 12 inches each. Easy-to-seal peel and Seal closure—no moisture needed. Durable 28-pound brown kraft material provides privacy and strength. 100-pack of 9 x 12 inch catalog envelopes.More information #ad
Brand | Amazon Basics #ad |
Manufacturer | Amazon Basics #ad |
Part Number | AMZP13 |
Model | AMZP13 |
More information #ad
7. 1InTheOffice
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100 Pack, #90, Gummed Sealed Envelopes, manila envelope, 1InTheOffice Clasp Envelopes 9x12
#ad1InTheOffice #ad - Clasp closure in 9x12 manila envelopes is easy and quick to close and allows envelope to be reused. Envelopes have two prong clasps that stand up, fitting through a reinforced eyelit. Manila envelopes 9x12 is great for sending important documents that cannot be folded for mailing.More information #ad
Envelopes manila gummed flap offers a permanent seal for transit in addition to the clasp closure. Clasp envelopes is made of strong heavyweight stock that resists tearing and ripping. Manila clasp envelopes can accommodates thicker items such as catalogs, booklets, and magazines.Brand | 1InTheOffice #ad |
Manufacturer | 1InTheOffice #ad |
Part Number | 54456546541 |
More information #ad
8. Blue Summit Supplies
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Designed for Secure Mailing, 100 9 X 12 Self Seal Golden Brown Kraft Catalog Envelopes, Oversize Strong Peel and Seal Flap with 28 Pound Kraft Paper- 100 Envelopes
#adBlue Summit Supplies #ad - Safe for sensitive documents like tax, legal, and financial documents. Great for storing receipts, magazines, tax returns, monthly financials, reports and more.Perfect size for standard 8. 5’’ x 11’’ letter paper, wide opening saves times when stuffing up to 60 sheets of letter paper securely. Allows for organized storage of personal and company documents due to its large size.
More information #ad
Securely holds hefty files during transit due to it sturdy construction and thick 28 LB Kraft Paper. Provides complete security: your documents are safe from others during transit. Just peel and seal to create a strong lasting seal: No need to worry about your contents failing out during transit even when shipping hefty shipments like 60 sheets of paper or magazines.Brand | Blue Summit Supplies #ad |
Manufacturer | Blue Summit Supplies #ad |
Part Number | BSS-92588-014 |
More information #ad
9. Aimoh
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9x12 inch 38100, 100 9 x 12 SELF Seal Security White Catalog Envelopes, 28lb, Security Tinted, Ultra Strong Quick-Seal
#adAimoh #ad - White 28lb stock; perfect for everyday business use, aimoh’s 9x12 envelopes are designed with an ultra strong SELF-SEAL adhesive strip to create a full, super secure seal across each envelope's width that won't easily open or tear and use high quality, white 28lb stock for a professional finish.100 9 x 12 catalog envelopes in every pack for a long lasting supply, easy bulk mailing and everyday business correspondence!9x12 catalog envelopes; aimoh’s white 9x12 security envelopes combine a professional security tint pattern, large size for business documents and premium quality for the best 9x12 envelopes on the market.
More information #ad
For 8. 5x11 documents; large 9x12 size and strong quick-seal closure security tinted envelopes, perfect for photos, catalogs, thicker, larger documents and other business mailings. Security tint pattern; ideal for secure business mailing and sensitive correspondence, each 9x12 envelope contains a super secure, security tint pattern to protect contents, information and data when mailing.
Brand | Aimoh #ad |
Manufacturer | Aimoh #ad |
Height | 2.5 Inches |
Length | 9 Inches |
Weight | 4.06 Pounds |
Width | 12 Inches |
Part Number | FBA_38100 |
Model | FBA_38100 |
More information #ad
10. Amazon Basics
#ad
100-Pack, Gummed, Amazon Basics 9 x 12-Inch Clasp Kraft Envelopes
#adAmazon Basics #ad - Measures 9 by 12 inches each; backed by an Amazon Basics 1-year limited warranty. Made with thick 28-pound kraft paper for reliable strength and protection.More information #ad
Moisture-activated gummed surface on flap creates a permanent seal. Double-prong metal clasp closure and reinforced eyelet keep documents securely contained. Clasp envelope 100-pack for filing, storing, or mailing documents.Brand | Amazon Basics #ad |
Manufacturer | Amazon Basics #ad |
Height | 3.13 Inches |
Length | 12 Inches |
Weight | 1.76 Pounds |
Width | 9 Inches |
Part Number | AMZ37890 |
Model | AMZ37890 |
More information #ad