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A deeply gummed envelope flap is laid thick with moisture-activated adhesive; creates a firm seal you can trust in the mail. Heavyweight 28 lb kraft paper envelopes are opaque to protect private contents; strong enough for bulk mailing or organizing the office.



Heavy duty envelopes 10 x 13 : these professional-looking multipurpose envelopes feature a dual-purpose seal that allows multiple uses.


Made in usa, heavy duty paper – extra strong, durable 28lb standard brown kraft envelopes proudly made right here in the united States Provides Confidential Protection & Exceptional Rip, Tear & Puncture Resistance - Thank you for supporting American manufacturing!.


With a metal clasp and gummed seal on the envelope flap, your contents will stay secure whether you’re mailing them, or keeping them safe in a file. 10” x 13” size means oversized papers, magazines, or other items that are larger than letter size can fit inside without being folded.

For home, school, folders, office, & business: use the clasp to store documents, files, letters & more. These envelopes also come with a moisture activated deeply gummed flap for situations where security is important, such as mailing.
1. Quality Park
#ad
28 lb Paper, Brown Kraft, Moisture-Activated Adhesive for Permanent Secure Seal, Quality Park 10 x 13 Clasp Envelopes, 100/Box QUA37897, Gummed
#adQuality Park #ad - Quality park 10x13 clasp envelopes are a staple of every office; a gummed flap and reusable clasp make them ideal for mailing and storage; 100 per box.A deeply gummed envelope flap is laid thick with moisture-activated adhesive; creates a firm seal you can trust in the mail. Heavyweight 28 lb kraft paper envelopes are opaque to protect private contents; strong enough for bulk mailing or organizing the office.
More information #ad
A great value; large envelopes are an economical way to send manuscripts, certificates or other documents you’d rather mail flat. Our yellow envelopes have durable 2 prong metal clasps and reinforced eyelets to let you access your files as needed; open, close, repeat.Brand | Quality Park #ad |
Manufacturer | Quality Park #ad |
Height | 3.9 Inches |
Length | 15.1 Inches |
Weight | 0.06 Pounds |
Width | 10.3 Inches |
Part Number | QUA37897 |
Model | QUA37897 |
More information #ad
2. Mead
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15 per Box 76022, Office Pak, 10" x 13", Brown Kraft, Mead Clasp Envelopes
#adMead #ad - Brown Kraft material. Heavyweight envelopes feature a clasp closure, in an Office Pak for larger quantity. 10" x 13" size. Made in United States. 15 envelopes per box.More information #ad
Brand | Mead #ad |
Manufacturer | ACCO Brands #ad |
Height | 0.94 Inches |
Length | 5.5 Inches |
Width | 10 Inches |
Part Number | 76022 |
Model | 76022 |
More information #ad
3. Quality Park
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Gummed Flap, 100/Box QUA37797, Quality Park 10" x 13" Clasp Envelopes, Brown Kraft
#adQuality Park #ad - Double prong metal clasps with reinforced eyelets. Reusable. Heavily gummed flaps. Clasp envelope on paper stock features a gummed flap closure.More information #ad
Brand | Quality Park #ad |
Manufacturer | Quality Park #ad |
Height | 4 Inches |
Length | 15.9 Inches |
Weight | 0.06 Pounds |
Width | 10.3 Inches |
Part Number | QUA37797 |
Model | QUA37797 |
More information #ad
4. EnDoc
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30 Pack, with Clasp Closure & Gummed Seal – 28lb Heavyweight Paper Envelopes for Home, Office, Business, Legal or School., Clasp Envelopes – 10x13 Inch Brown Kraft Catalog Envelopes
#adEnDoc #ad - Safe for storage : ideal 10 x 13 size is perfect for both mailing & storing important paperwork, stamps, craft projects, dies & more; buy in bulk & save big. Catalog orientation : classic open-end style enables fast, coupon, pamphlet, convenient stuffing for legal letter, magazine & other common mailers.Heavy duty envelopes 10 x 13 : these professional-looking multipurpose envelopes feature a dual-purpose seal that allows multiple uses.
More information #ad
Double seal design : offers reliable security for personal & professional mailing; sturdy metal dual prong clasps & gummed seals w/ tough adhesive glue. Made in usa, durable 28lb standard brown kraft envelopes proudly made right here in the united states provides confidential protection & exceptional rip, heavy duty paper : extra strong, tear & puncture resistance - thank you for supporting american manufacturing!.Brand | EnDoc #ad |
Manufacturer | EnDoc #ad |
Part Number | Clasp Brown |
More information #ad
5. Quality Park
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100 Count 43768, Kraft, Quality Park Postage Saving Clear-Clasp Envelopes, 10 inches x 13 inches
#adQuality Park #ad - No additional Handling Charges. This product was made from Wood Sourced From A Certified Managed Forest. Multiple Uses. Reusable.More information #ad
Brand | Quality Park #ad |
Manufacturer | Quality Park #ad |
Height | 10.31 Inches |
Length | 13.4 Inches |
Weight | 4.28 Pounds |
Width | 3 Inches |
Part Number | 43768 |
Model | 43768 |
More information #ad
6. EnDoc
#ad
Legal or School 15 Pack 10x13, Clasp Envelopes, 10x13 Inch Brown Kraft Catalog Envelopes with Clasp Closure & Gummed Seal – 28lb Heavyweight Paper Envelopes for Home, Office, Business, Brown Kraft
#adEnDoc #ad - 10x13 clasp envelope set – pack of 15 single reusable envelopes serves a Variety of Small & Large Documents for Home, Office, Business, Legal & School. Double seal design – offers reliable security for personal & Professional Mailing; Sturdy Metal Dual Prong Clasps & Gummed Seals w/ Tough Adhesive Glue.Made in usa, heavy duty paper – extra strong, durable 28lb standard brown kraft envelopes proudly made right here in the united States Provides Confidential Protection & Exceptional Rip, Tear & Puncture Resistance - Thank you for supporting American manufacturing!.
More information #ad
Catalog orientation – classic open-end style enables fast, Convenient Stuffing for Legal Letter, coupon, Pamphlet, Magazine & Other Common Mailers. Safe for storage – ideal 10 x 13 size is perfect for both mailing & More; Buy in Bulk & storing Important Paperwork, Stamps, Craft Projects, Dies & Save Big.Brand | EnDoc #ad |
Manufacturer | EnDoc #ad |
Part Number | clasp15 |
More information #ad
7. 1InTheOffice
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Self Seal Envelope, Clasp, Manila, Kraft Envelopes #97, 100 Pack, 1InTheOffice Manila Envelopes 10x13
#ad1InTheOffice #ad - Large envelopes 10x13 is great for sending important documents that cannot be folded for mailing. Manilla envelopes 10x13 gummed flap offers a permanent seal for transit in addition to the clasp closure. Self seal envelope can accommodates thicker items such as catalogs, booklets, and magazines.More information #ad
Clasp closure in kraft envelopes 10x13 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. Clasp envelopes is made of strong heavyweight stock that resists tearing and ripping.Brand | 1InTheOffice #ad |
Manufacturer | 1InTheOffice #ad |
Part Number | 9687468541534 |
More information #ad
8. Blue Summit Supplies
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Large Clasp Mailing Envelopes Made From 28lb Kraft Paper, For Mailing Larger Papers or Magazine, Blue Summit Supplies 100 10” x 13” Clasp Envelopes with Gummed Seal, Bulk 100 Pack
#adBlue Summit Supplies #ad - Made from 28lb kraft paper, these envelopes resist tearing to keep your contents safe, and are easy to label with any type of writing utensil or printed label sticker.With a metal clasp and gummed seal on the envelope flap, your contents will stay secure whether you’re mailing them, or keeping them safe in a file. 10” x 13” size means oversized papers, magazines, or other items that are larger than letter size can fit inside without being folded.
More information #ad
Easily send or store receipts, letters, documents, magazines and more with our durable 10” x 13” clasp envelopes made from 28lb kraft paper. This 100 pack of clasp envelopes is a highly affordable alternative to more expensive options.Brand | Blue Summit Supplies #ad |
Manufacturer | Blue Summit Supplies #ad |
Part Number | BSS-92588-1098 |
More information #ad
9. Desktop Publishing Supplies, Inc.
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For File, or Mailing, 15 Count Pack, Storage, 28lb Durable Golden Kraft, 10" x 13" Clasp Envelopes
#adDesktop Publishing Supplies, Inc. #ad - Great for booklets, products, binders, and more!. Durable material: clasp envelopes are made from a 28lb Bond Golden Kraft paper designed to provide extra protection to your documents.For home, school, folders, office, & business: use the clasp to store documents, files, letters & more. These envelopes also come with a moisture activated deeply gummed flap for situations where security is important, such as mailing.
More information #ad
Oversized size: catalog style 10" x 13" envelopes are great for storing or shipping over-sized contents or large quantities of 8-1/2" x 11" size documents in a single envelope. Versatile envelopes: these envelopes feature a metal clasp made from a strong, durable material that can handle repeated use. Use the gummed flap plus clasp for mailing documents or shipping products.Brand | Desktop Publishing Supplies, Inc. #ad |
Manufacturer | Desktop Publishing Supplies, Inc. #ad |
Part Number | 57711 |
More information #ad