Best Packagingsuppliesbymail Envelopes And Mailing in 2026

Box of 100 windowless #10 security envelopes with a Redi-Strip peel and seal closure

Security envelopes have a special security tint pattern that obscures what's inside; ideal when you're sending more sensitive material through the mail

Self seal envelopes are quick, easy and more clean and sanitary than gummed envelopes; with a Redi-Strip closure, just peel off the strip and press closed for a secure seal; no moisture needed

#10 business letter envelopes for personal or professional use

Includes 500 #10 envelopes made of 24-pound standard white woven paper for quality and strength; no tint

Moisture activated gummed closure ensures a secure 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

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

NO. 6 x 9 BOOKLET ENVELOPE PACK : 6” x 9” size business envelopes are perfect for mailing a variety of big documents including booklets, catalogs, forms, invoices & cards great envelopes for mailing tax returns ideal size for brochures, legal docs, wedding invitations & direct mailers offers maximum space within USPS 1-stamp dimension requirements; buy bulk & save big on both supplies & shipping.

DURABLE 24LB PAPER : These colored business envelopes are crafted from durable 24lb High quality Starburst paper. This makes them economical and durable.

BRIGHT COLOR : These brightly colored envelopes never fail to impress. Attractive and attention-grabbing, these multicolor envelopes are a popular choice for sending marketing mailers.

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.

Feature: These small brown envelopes are made from kraft paper, and this small envelopes size is about 2.25" x 3.5". Perfect envelope size for coins, seeds, date medications, bills, resistors capacitors, checks, little cards, and any small parts!

Water Glue Seal: The mini envelopes are water glue seals, when you put the sorting and storing seeds, small electronic components, or other contents into the envelope, folding and keep the flap glued 3-5 minutes. It's a simple and secure envelope to protect the contents.

Best Envelope for Saving Seed: This seed envelopes has the function of releasing moisture, keeping seeds dry, and protecting seeds. It's great for storing and organizing garden seeds.

#9 DOUBLE WINDOW QUICK SEAL SECURITY ENVELOPES; tired of cheap thin, easily torn envelopes? Aimoh's#9 Security Envelopes are the perfect solution, with premium security tint, extra large, easily read dual front windows and super secure quick seal adhesive

SECURITY TINT; forget thin, easily read envelopes these premium #9 Security Envelopes are designed with security tinted wave patterns which easily obscure details, numbers and other data within, perfect for mailing business statements and invoices while protecting sensitive information

DOUBLE WINDOWS; professional, easily read double front windows suitable for standard business and legal mailings, advertising campaigns and many more, eliminating constantly printing and hand writing addresses, Each envelope contains two front windows, a 1-3/16" X 3-1/2" top window positioned 3/8" from the left and 2" from the bottom and the bottom 1" X 4" window is 3/8" from the left and 1/2" from the bottom

Color: White

Size: #7 Coin (3 1/2 x 6 1/2 inches) | Gummed closure helps keep your items safe and secure

Quantity: 25 envelopes per pack | Plenty of envelopes for all of your mailing and organization needs

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.

Perfect for mailing Invoices, QuickBooks Invoices and checks, billing statements, checks, and other business mail.

No need for tape or glue sticks as our strong gummed seal creates a hassle free and safe seal for all your sensitive documents.

Your contents will stay sealed during transit with your strong gummed adhesive and unique 1’’ tapered gummed flap design.

#10 Blush Envelopes: These elegant and pretty envelopes are perfect for mailing letters, documents, thank-you notes, wedding and baby shower invitations, and Mothers' love letters

Personalize with Passion: Use stickers and labels to customize these colorful pastel envelopes for a corporate office event, birthday party, wedding, holiday, banquet, bridal shower, or baby shower

Convenient Construction: The cute envelopes for letters feature a gummed seal and V-flap closure; you can simply apply water to the edges of the flap to seal your letters

NO. 9 x 12 BOOKLET ENVELOPE PACK : 9” x 12” size open side business envelopes are perfect for mailing a variety of big documents including booklets, catalogs, forms, invoices & cards great envelopes for mailing tax returns ideal size for brochures, legal docs, wedding invitations & direct mailers.

DURABLE 24LB PAPER : These colored business envelopes are crafted from durable 24lb High quality Starburst paper. This makes them economical and durable.

BRIGHT COLOR : These brightly colored envelopes never fail to impress. Attractive and attention-grabbing, these multicolor envelopes are a popular choice for sending marketing mailers.

THICK and DURABLE ENVELOPES - made from the most popular business letterhead or stationery weight of 24lb bond / 60lb text paper that greatly holds mailing documents; Gummed Booklet Style Square Flap that provides extra security for document's safe-keeping

STANDARD A2 SIZED ENVELOPES - 4 3/8” x 5 3/4” inches that fit any 4.25 x 5.5 letters, postcards, greeting cards, photos, announcements, social and invitation purposes and more; ideal large reply envelope size that fits inside A7, A8, A9 and A10 sizes envelopes

PERFECT FOR BUSINESS OR PERSONAL USE - great for enclosing your Save the Dates, DIY Invitations, Thank you cards, Graduation announcements, Do-It-Your-self Greeting Cards, and business correspondence; it can be hand addressed or professionally printed

#10 SECURITY TINTED GUMMED ENVELOPES; the durable, woven paper extends the tampering resistance of this envelope, standing up to normal postal wear and tear without damage, perfect for larger documents and sensitive correspondence

PREMIUM SECURITY TINTED PATTERN; our #10 envelopes are designed with a premium security printed design to protect contents and sensitive information, perfect for secure business and legal mailing while protecting sensitive information

WINDOWLESS DESIGN; envelopes ideal for standard business & legal documents and sensitive correspondence, manufactured with a windowless front panel for easy printing, labeling or hand-addressing, perfect for quick, mass business mailings

Columbian 6 x 9 Booklet Envelopes are a safe, secure choice for smaller mailings

24 lb. White wove paper provides a crisp professional look; side-seam construction creates a smooth, fold-free back panel for printing

Booklet orientation; these side-loading envelopes make it easy to drop in thick stacks of documents

Colored Envelopes #10: This 200-pack of green envelopes letter size features a V-flap enclosure and vibrant green-colored paper, perfect for birthday party invites

Value Pack: Make sure you always have some #10 envelopes on hand when you need them for writing and mailing business correspondence or for craft projects

Gummed Flap Seal: These printable paper bulk envelopes feature a flap enclosure with a gummed seal that can be sealed by applying a small amount of water and applying pressure

Easily send or store receipts, letters, documents, magazines and more with our durable 10” x 13” clasp envelopes made from 28lb kraft paper

10” x 13” size means oversized papers, magazines, or other items that are larger than letter size can fit inside without being 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.

THICK and DURABLE ENVELOPES - made from the most popular business letterhead or stationery weight of 24lb bond / 60lb text paper that greatly holds mailing documents; Gummed Booklet Style Square Flap that provides extra security for document's safe-keeping

STANDARD A6 SIZED ENVELOPES - 4.75” x 6.5” inches that fit any 4x6 letters, postcards, greeting cards, photos, announcements, social and invitation purposes and more; ideal large reply envelope size that fits inside A7, A8, A9 and A10 sizes envelopes

PERFECT FOR BUSINESS OR PERSONAL USE - great for enclosing your Save the Dates, DIY Invitations, Thank you cards, Graduation announcements, Do-It-Your-self Greeting Cards, and business correspondence; it can be hand addressed or professionally printed

THICK and DURABLE ENVELOPES - made from the most popular business letterhead or stationery weight of 24lb bond / 60lb text paper that greatly holds mailing documents; Gummed Booklet Style Square Flap that provides extra security for document's safe-keeping

STANDARD A7 SIZED ENVELOPES - 7 1/4” x 5 1/4” inches that fit any 5 x 7 letters, postcards, greeting cards, photos, announcements, social and invitation purposes and more; ideal large reply envelope size that fits inside A8, A9 and A10 sizes envelopes

PERFECT FOR BUSINESS OR PERSONAL USE - great for enclosing your Save the Dates, DIY Invitations, Thank you cards, Graduation announcements, Do-It-Your-self Greeting Cards, and business correspondence; it can be hand addressed or professionally printed

THICK and DURABLE ENVELOPES - made from the most popular business letterhead or stationery weight of 24lb bond / 60lb text paper that greatly holds mailing documents; Gummed Booklet Style Square Flap that provides extra security for document's safe-keeping

STANDARD A7 SIZED ENVELOPES - 5.25” x 7.25” inches that fit any 5x7 letters, postcards, greeting cards, photos, announcements, social and invitation purposes and more; ideal large reply envelope size that fits inside A8, A9 and A10 sizes envelopes

PERFECT FOR BUSINESS OR PERSONAL USE - great for enclosing your Save the Dates, DIY Invitations, Thank you cards, Graduation announcements, Do-It-Your-self Greeting Cards, and business correspondence; it can be hand addressed or professionally printed

THICK and DURABLE ENVELOPES - made from the most popular business letterhead or stationery weight of 24lb bond / 60lb text paper that greatly holds mailing documents; Gummed Booklet Style Square Flap that provides extra security for document's safe-keeping

STANDARD A7 SIZED ENVELOPES - 7 1/4” x 5 1/4” inches that fit any 5 x 7 letters, postcards, greeting cards, photos, announcements, social and invitation purposes and more; ideal large reply envelope size that fits inside A8, A9 and A10 sizes envelopes

PERFECT FOR BUSINESS OR PERSONAL USE - great for enclosing your Save the Dates, DIY Invitations, Thank you cards, Graduation announcements, Do-It-Your-self Greeting Cards, and business correspondence; it can be hand addressed or professionally printed

9x12 White booklet envelope.

Great for mailing out sales brochures, annual reports, and product literature

Envelope open on the side.

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.

Self Adhesive Design: when using the envelope for cash, please wet the glue at the sealing, then fold the sealant and hold it for about one minute, which can be sealed tightly as you need, easy and fast

Abundant to Choose: you will receive 200 pieces of cash envelopes for budgeting, the sufficient quantity is enough for your daily use and replacement demands, sharing them with your family, friends or neighbors is also nice

Proper Size: black envelopes measure about 3.5 x 6.5 inches for each, smooth textured, compact and portable, easy to carry and store, the classic black color is suitable for decorating, you can add stickers and small ornaments (not included) on the surfaces, showing your personal taste

Sold as 250/Box.

Catalog envelopes are a reliable choice for multiple kinds of personal and business mailing purposes. Made from brown kraft paper that conceals contents from prying eyes. Dimensions: 10"L x 13"H, size #13. Gummed and clasp closures keeps your documents secured inside the envelope. Envelopes come in boxes of 250, making them an easy, and economical choice for the business that needs to spend wisely without sacrificing quality. 20% post-consumer content. 20% total recycled content.

Made from brown kraft paper that conceals contents from prying eyes. 20% post-consumer content.

10x13 Booklet white Multi-purpose envelopes.

These Booklet envelopes standard 28 lb white stock

Has Moisture activated gummed seal.

Booklet Envelopes - 28lb. Brown Kraft

Brown kraft booklet envelopes Great for mailing Invoices, statements, catalogs or announcements brochures, annual reports, and product literature.

A Quantity of 50

Great Value: the pack includes 600pcs clasp envelopes, each measuring 6 x 9 inches, providing you with a cost-effective solution for your mailing needs

Trustworthy Envelopes: with strong metal clasp closure, the kraft envelopes can ensure your contents are safe and reliable during mailing, storage, and handling

Good Quality: made of heavy-duty 28LB standard brown kraft paper, reinforced with double prong metal clasps and eyelets, our manila envelopes offer exceptional rip, and puncture resistance, providing confidential protection for your important documents