Best Gummed Clasp Mailing Envelopes in 2026

Reusable, double prong metal clasp is durable and designed for repeated use and eyelets are reinforced . Great for home, office, school, interoffice or mailing.

Perfect for everyday home and business use, clasp envelopes are made from heavyweight 28 lb. brown Kraft stock to give contents extra protection during mailing, storage and handling.

In addition to the clasp closure, these envelopes have a moisture activated seal with deep gumming on the flap to create a permanent seal.

Kraft Envelopes

Self-adhesive seal

Heavyweight

Heavyweight envelopes feature a clasp closure, in an Office Pak for larger quantity

9" x 12" size

Brown Kraft material

Clasp envelope (100-pack) for filing, storing, or mailing documents

Double-prong metal clasp closure and reinforced eyelet keep documents securely contained

Moisture-activated gummed surface on flap creates a permanent seal

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.

Extra heavy-duty opaque 32 lb. brown Kraft material provides privacy of contents

9 x 12 inches; 100 envelopes per box

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

DURABLE MULTI-PURPOSE; Ideal for mailing catalogues, magazines, documents, direct mail, promotional material, brochures and more, Aimoh’s Catalog Envelopes can be easily hand addressed or customized with business information

28LB STOCK; manufactured from tough, durable Construction like 28lb paper stock, the brown kraft material will insure privacy of the envelopes contents, the durable, woven paper extends the tampering resistance of this envelope, standing up to normal postal wear and tear without damage,

10x13 CLASP ENVELOPE SET – Pack of 15 Single Reusable Envelopes Serves a Variety of Small & Large Documents for Home, Office, Business, Legal & School

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!

DOUBLE SEAL DESIGN – Offers Reliable Security for Personal & Professional Mailing; Sturdy Metal Dual Prong Clasps & Gummed Seals w/ Tough Adhesive Glue

HEAVYWEIGHT ENVELOPE SET : Box of 100 single envelopes accommodates variety of small & large documents for home, office, business, legal & more.

SUPER STRONG CONSTRUCTION : Standard brown kraft envelopes are crafted of heavy, durable 28lb paper for exceptional rip, tear & puncture resistance.

DOUBLE SEAL DESIGN : Provides dependable security for work & personal mailing; features reusable dual prong clasps & gummed seals w/ tough adhesive glue.

Package includes 18 brown kraft envelopes with gummed seal and metal prong clasp.

Mr. Pen clasp envelopes are made from high-quality brown kraft paper that won’t easily rip or tear during transportation.

Each kraft envelope measures 9 x 12 inches, perfect for mailing and storing Important paperwork.

Clasp - #105 - 11 1/2" Width x 14 1/2" Length - 28 lb - Clasp - Kraft - Brown Kraft - 10 Envelopes

Heavy-duty, 28 lb. Brown Kraft

Metal clasp with rounded edges is plated for rust-resistance

10x13 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

DURABLE MULTI-PURPOSE; Ideal for mailing catalogues, magazines, documents, direct mail, promotional material, brochures and more, Aimoh’s Catalog Envelopes can be easily hand addressed or customized with business information

28LB STOCK; manufactured from tough, durable Construction like 28lb paper stock, the brown kraft material will insure privacy of the envelopes contents, the durable, woven paper extends the tampering resistance of this envelope, standing up to normal postal wear and tear without damage,

Ideal for storing or sending important paper work

A great organizational method for school, home or work setting

A must have for school administrators, lawyers and HR representatives

9 x 12 Inches

Adequate supplies: 50 pieces clasp envelopes with flaps are available in 4 different sizes, you will get 26 pieces envelopes of 5 x 7 inch, 14 pieces envelopes of 6 x 9 inch, 8 pieces envelopes of 9 x 12 inch, 2 pieces envelopes of 10 x 13 inch, different sizes can hold various files in different sizes

Essential tools: the brown kraft catalog clasp envelopes are the practical stationery that most offices would need; Designed to provide extra protection for items during mailing, storage and handling, it is very suitable for daily household and business use

Quality material: the brown kraft catalog clasp envelopes with clasp seal are made of quality kraft material, safe and durable to use with a durable metal clasp and a reinforced eyelet on the open end, so you won't worry about the content suddenly falling out

Easily send or store receipts, letters, documents, magazines and more with our durable 9” x 12” clasp envelopes made from 28lb kraft paper

9” x 12” size is perfect for letter size documents, papers, magazines, or other items that can fit inside without needing to be folded.

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.

Clasp - #35 - 5" Width x 7 1/2" Length - 28 lb - Clasp - Kraft - 10 / Pack - Brown Kraft

Heavy-duty, 28 lb. Brown Kraft

Metal clasp with rounded edges is plated for rust-resistance

Large clasp envelopes are a staple in any office. Whether you need to mail a large document or just keep the pages of your annual report together in your desk, these Office Depot manila clasp envelopes can help.

Reinforced metal clasp closure helps secure your documents inside the brown envelopes.

Box of 100 envelopes.

High-quality material: The Keketer Gradient Color #10 Envelope is made from premium quality materials, ensuring durability and long-lasting use. The sturdy material protects the contents of the envelope from wear and tear during transit, making it ideal for mailing important documents or letters.

Unique gradient color: The envelope features a beautiful gradient color design that is eye-catching and attractive. The unique color gradient adds a touch of elegance and sophistication to any mailing, making it perfect for special occasions like weddings, birthdays, or other important events.

Versatile use: The Keketer Gradient Color #10 Envelope is suitable for a wide range of applications, including mailing letters, invitations, greeting cards, and other important documents. It is compatible with most standard printers and can be easily customized to include logos, addresses, or other branding elements.

Size: 9" x 12"

4 count

Heavyweight envelopes with clasp closing

Large envelopes 10x13 is great for sending important documents that cannot be folded for mailing.

Clasp closure in kraft envelopes 10x13 is easy and quick to close and allows envelope to be reused.

Manilla envelopes 10x13 gummed flap offers a permanent seal for transit in addition to the clasp closure

Metal Clasp With Rounded Edges Is Plated For Rust-Resistance.

Open-End Style Construction With Superior Gumming On Flap For A Secure Seal.

28 Lb. Brown Kraft Stock To Give Contents Extra Protection During Mailing, Storage And Handling.

Adequate quantity and suitable size: 100 pieces clasp envelopes with flaps are available in 3 different sizes; 50 Pieces envelopes of 5 x 7 inch, 30 pieces envelopes of 6 x 9 inch, 20 pieces envelopes of 9 x 12 inch, various sizes for you to choose, and sufficient quantity can meet your usage

Essential tools: these kraft catalog clasp envelopes are practical stationery needed in most offices; Designed to provide extra protection for items in the process of mailing, storage and handling, they are suitable for daily household and commercial usage

Quality material: featuring quality kraft material, these catalog envelopes with clasp seal are safe and reliable to use; Adopting a quality metal clasp and a reinforced eyelet on the open end, these envelopes will not let the content falling out easily

Assembly Required: No, Color: Brown, Mailer/Envelope Size: #97, 10" Width x 13" Length, Mailer/Envelope Size: #97, Material: Kraft

Features: Heavyweight

Sold as 1 pack

Clasp - #90 - 9" Width x 12" Length - 28 lb - Clasp - Wove - 10 / Pack - White

Gummed flap creates permanent closure to prevent peeling during transit

Double-prong clasp allows convenient interdepartmental use

Two-prong clasp

Gummed flap

Reinforced eyelet

Plenty Quantity: you will receive 300 pieces of 6 x 9 inches kraft clasp envelopes; Each kraft catalog envelope comes with clasp closure and gummed seal, which can be self adhesive well; The sufficient quantity can meet your daily use needs, ideal for your office or home purpose

Double Seal: these 6 x 9 security envelopes can provide security for your work mails or personal mails, which have reusable dual prong clasps and tough rehydration glue, your contents will always stay secure, avoiding the contents from falling out during transiting

Ideal Size: these kraft clasp envelopes are about 6 x 9 inches/ 15.2 x 22.9 cm, which are suitable for storing your documents, letters, files, pictures, photos, papers and so on, keeping them organized