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

✉️ 100 ENVELOPE PACK; these envelopes are manufactured with a WINDOW-LESS front panel for the perfect choice for small businesses, home offices and everyday use, #10 Security Envelopes are provided in a 100-envelope pack

✉️ SUPER SECURITY TINT PATTERN; #10 envelopes designed with a secure, security tint-pattern to protect contents and sensitive information, perfect for ultra-secure mailing

✉️ QUICK-SEAL CLOSURE; our #10 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, ideal for mailing for any letter sized and larger documents without splitting

100-Pack of 6 x 9 inch catalog envelopes

Durable 28-pound brown kraft material provides privacy and strength

Easy-to-seal Peel and Seal closure—no moisture needed

QUICK SELF-SEAL DESIGN: Licking envelopes is a thing of the past. The convenient self-seal design seals the envelopes quickly and effortlessly-no glue, tape, or wax required! Ultra-strong adhesive will keep the envelope closed and its contents protected.

PRINTER FRIENDLY: Why pay for expensive custom envelopes when you can make them yourself? The Ohuhu A7 Self Seal Envelopes are compatible with laser and inkjet printers, as well as offset and digital printing presses! Just choose your design, insert the envelope, and let the printer do the work.

HOME USE, OFFICE USE, AND MORE: Whether you're a busy parent or a small business owner, mailing us unavoidable. Versatile envelopes are a must! At 5-1/4" x 7-1/4", the Ohuhu A7 Self Seal Envelopes are ideal for sending letters, paperwork, 5x7 cards, 5x7 photos, invitations, and everything in between.

SUPER STRONG CONSTRUCTION – Standard White Envelopes Are Crafted of Heavy, Durable 28lb Paper for Exceptional Rip, Tear & Puncture Resistance

SELF SEALING CLOSURE - makes securing contents quick and easy. Peel off the protective strip and press the flap firmly to create a tight bond that seals the contents safely inside the envelope

HEAVYWEIGHT ENVELOPE SET – Pack of 15 Single Envelopes Accommodates Variety of Small & Large Documents for Home, Office, Business, Legal & More

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

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

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

Usable dimensions: 6'' x 9'', outer dimensions: 6.69'' x 9.84.

100 packs in total.

Clear outer face.

MORE VALUE FOR MONEY: Everyone agrees a set of 50 Brown 5x7 Envelopes is great value. But when they’re shrink wrapped and become tattered and lost over time, that value obviously diminishes. But not Sweetzer & Orange 5 x 7 Envelopes. These thick self seal invitation envelopes come nestled in their own sturdy box. So, that ‘value for money’ you expect, is now the value you get, until the very last one.

TRUE TO SIZE: When we say 5x7 plain envelopes for photos and other things, we mean it. In fact they’re 5.25 inches x 7.25 inches! So your true to size 5x7 photo or pre-ordered 5x7 invitation cards will fit perfect and with room to spare. And as for how much you can cram in? Well, each A7 envelope will easily fit up to 9 regular photos. And they’re made for regular postage when you don’t overstuff them.

THICKER THAN MOST: You’ve probably seen thinner 120gsm blank envelopes today. Or those Kraft envelopes that look like thin paper bags. These, are NOT those. Because you’re using them for special cards, documents, photos and invites you’ll love that they’re matte, thick 150gsm kraft paper envelopes. They’re non-bleed, so calligraphy pens love them, and you can even pop them in your printer!

Size: 7.5 x 5.5 inches, Pack of 200 pcs

Clear outer face, you can clearly see the label or invoice inside the transparent bags

Fast simple application: simply peel off the paper backing and stick it to package

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

#6 3/4 SECURITY TINTED SELF SEAL ENVELOPES; want the very best in secure, security-tinted envelopes with a super strong self-seal? Aimoh's No. 6 3/4 Security Envelopes combine durable, printer-compatible paper, a security tinted design and strong self-seal QUICK-SEAL for the best #6 3/4 security self-seal envelopes on the market

SUPER SECURITY TINT PATTERN; #6 3 / 4 envelopes designed with a secure, security tint-pattern to protect contents and sensitive information, perfect for ultra-secure personal mailing while protecting sensitive information

100 ENVELOPE PACK; these envelopes are manufactured with a WINDOW-LESS front panel for the perfect choice for Personal Checks, home offices and everyday use, No. 6 3/4 Security Envelopes are provided in a 100-envelope pack

PERFECT FOR ALL OCCASIONS: If you’re looking for an envelope for baby shower invitations, wedding invitations, holiday cards, pregnancy announcements, RSVPs, thank-you cards, and more, our A7 LUX Paper envelope is an excellent option. These square flap envelopes are also perfect for direct mail, letters, postcards, and 5” x 7” photos so you can depend on them for all your special mailing needs.

PEEL & PRESS SEAL: The self-seal design of these envelopes is perfect for anyone who doesn’t want to lick or use a moistener on every single envelope — it’s a huge time-saver! Simply peel off the protective strip, press, and seal. It couldn't be easier! This type of adhesive is great for business applications, wedding announcements, and personal notes.

PRINTABLE & CUSTOMIZABLE: If you want to customize or label your envelopes with zero hassle, you’re in luck! These envelopes are printer-friendly, so you can use your home laser or inkjet printer to address them. They are printable on both digital and offset commercial printers. No need to worry about smudging or jamming because these envelopes are made for compatibility with most printer models.

PERFECT FOR ALL OCCASIONS: If you’re looking for an envelope for baby shower invitations, wedding invitations, holiday cards, pregnancy announcements, RSVPs, thank-you cards, and more, our A7 LUX Paper envelope is an excellent option. These square flap envelopes are also perfect for direct mail, letters, postcards, and 5” x 7” photos so you can depend on them for all your special mailing needs.

PEEL & PRESS SEAL: The self-seal design of these envelopes is perfect for anyone who doesn’t want to lick or use a moistener on every single envelope — it’s a huge time-saver! Simply peel off the protective strip, press, and seal. It couldn't be easier! This type of adhesive is great for business applications, wedding announcements, and personal notes.

PRINTABLE & CUSTOMIZABLE: If you want to customize or label your envelopes with zero hassle, you’re in luck! These envelopes are printer-friendly, so you can use your home laser or inkjet printer to address them. They are printable on both digital and offset commercial printers. No need to worry about smudging or jamming because these envelopes are made for compatibility with most printer models.

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,

Size: A7 size white environmental protection envelope, made of 5 1/4" x 7 1/4" standard A7 size, with a square seal in the form of a glue booklet, made of high-quality paper, thick and durable, with excellent sealing performance. Your privacy will be well protected.

Design: This 5x7 envelope is very suitable for 5x7 cards/photos. These envelopes are also very suitable for direct mail, letters, postcards, weddings, birthdays, baby showers, graduations, holidays, handmade cards, business, and various party invitation cards. So you can rely on them to meet all your special mailing needs.

Sealing: This is a huge time-saving envelope, each envelope comes with a separate tape, just tear off the protective strip, press, and seal it. Easy to seal peeling and sealing and closing operations, this type of adhesive is ideal for commercial applications, wedding announcements, and mailing.

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

💌 Color: Sage Green Envelopes, 120gsm good quality paper.

💌 Size: 5.3 x 7.4'' about 135 mm x 195 mm. (Fit for 5x7'' invitation cards, and fit for each invitations kits in our store )

💌 Package included: 50 pieces Sage Green luxury envelopes + 50 Gold Seals. (Envelopes can be sealed by the moistenable glue strip on the back flap)

STOCK UP: Ensure you always have envelopes in hand for all your mailing needs

MULTIPLE USES: Perfect for mailing holiday cards, greeting cards, handwriting notes, photos, save the dates, invitations, thank you notes, and more. Eligible for mailing as a letter

PREMIUM QUALITY: Booklet style square flap with a glue seal closure; 70lb text paper stock; made with a minimum of 30% post-consumer fiber; uncoated finish is great for ink or LaserJet printers

PERFECT FOR ALL OCCASIONS: If you’re looking for an envelope for baby shower invitations, wedding invitations, holiday cards, pregnancy announcements, RSVPs, thank-you cards, and more, our square envelope is an excellent option. These square flap envelopes are also perfect for direct mail, letters, postcards, and 5 1/2” x 5 1/2” photos so you can depend on them for all your special mailing needs.

PEEL & PRESS SEAL: The self-seal design of these envelopes is perfect for anyone who doesn’t want to lick or use a moistener on every single envelope — it’s a huge time-saver! Simply peel off the protective strip, press, and seal. It couldn't be easier! This type of adhesive is great for business applications, wedding announcements, and personal notes.

PRINTABLE & CUSTOMIZABLE: If you want to customize or label your envelopes with zero hassle, you’re in luck! These envelopes are printer-friendly, so you can use your home laser or inkjet printer to address them. They are printable on both digital and offset commercial printers. No need to worry about smudging or jamming because these envelopes are made for compatibility with most printer models.

Our #10 light blue envelopes are the ideal choice for mailing letters, gift certificates, and cards

Use stickers, markers, and labels to easily customize these colorful blank business envelopes

The cash envelopes feature high-quality paper and a square flap to keep your contents secure

【9 X 12 Inches, 250 Packs】 Coming with a nice storage box, ValBox white catalog envelopes are 250pcs/packs. 9 x 12 inch self sealing envelopes is perfect for standard letter size papers, business documents, photographs, contracts, magazines and more without folding.

【Peel & Seal, No Licking】 This self seal catalog envelopes are easy to peel and seal with a strong flap adhesive, no licking of glue or water to moisten when working with multiple mailings. Good job in saving time.

【Provides Complete Security】 Adhesive on ValBox 9x12" security catalog envelopes creates a strong lasting seal. You don't need to worry about the contents in the white catalog mailing envelopes falling out during transit even you have put hefty 60 sheets of paper or magazines.

Perfect size for standard 8.5'' x 11'' letter paper, wide opening saves times when stuffing up to 60 sheets of letter paper securely

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

Provides complete security: your documents are safe from others during transit. Safe for sensitive documents like tax, legal, and financial documents

Durable & Vibrant Cash Envelopes: ACSTEP envelopes are designed for repeated usage, withstanding the demands of daily use. These envelopes are perfect for money-saving enthusiasts looking for an efficient and colorful way to organize their cash. Choose ACSTEP and add a vibrant touch to your savings journey!

Bold Colored Design: Our envelopes come in an array of fun and bold colors, adding excitement to your savings challenge. The distinct colors also assist in separating different payment categories. Enjoy saving money with a splash of color with ACSTEP envelopes!

Optimal Size & Generous Quantity: At 3 1/2 x 6 1/2, these envelopes are perfectly sized for your cash and notes. With a pack of 200 envelopes, you will have more than enough to keep your finances organized. Make ACSTEP your choice for efficient cash management!

Perfect for secure everyday home and business mailing. Our Security #10 Windowless Envelopes perfectly fit standard 8.5’’ x 11’’ paper sizes and other large documents. Easily fits invoices, letters, checks, and more.

Provides complete mail security. No need to worry about others seeing your documents, our dark black security tint completely hides you mail.

Just peel and seal to create a strong lasting seal without licking or moistening. Our self seal design is quick and easy and is guaranteed to stay sealed with no need for tape or glue sticks.

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.

High Quality Craft Envelopes: Dimension of Eupako A4 envelopes self seal is 4.25 x 6.25 inches with a smooth touching and elegant looking, perfect for stuffing with 4x6 cards, invitations, photos, announcements, thank you note, save the dates and RSVP.

Set of 100: Package includes 100 pack 4x6 envelopes for invitations, meeting the need of daily life and office use. 4 x 6 envelopes are ideal for any occasion - wedding, graduation, birthday, party, holiday, baby shower, business and more.

Self-sealing Flap: The white envelopes 4x6 is easy to use. Just peeling off the strip and sealing the flap to get an effortless mailing, no need to lick or moisten. Also, the adhesion of flap on envelopes for 4x6 cards is quite strong, secure and lasting, keeping contents from falling out when transiting.

Quantity: 200 Pcs Brown Kraft A7 Invitation Envelopes Come in A Nice White Cardstock Storage Box. A7 Envelopes are Square flap style, Laser and inkjet compatible, matte finishes. A7 Invitation Envelopes are easily sealed by Peel & Press strip located on the inside of the back flap. A7 Envelopes are commonly called 5x7 Envelopes because they are the best envelope for 5 x 7 cards. This size invitation envelope also fits smaller A Sizes inside (A1, A2, A4, A6) as part of an invitation suite.

Color: The Blank A7 Square Flap Envelopes are in light brown, a classic color that can go well with any theme and can be used for all kinds of occasions. From rustic wedding, baby shower invitations to special holiday greetings, from simple and classy letters, to promotional mail for your business, these Kraft Envelopes can do it all!

Dimensions: A7 invitation Envelopes business envelopes measure 5.25" in length and 7.25" in width. The A7 envelope size is Perfect for holding 5x7 cards, 5x7 photos, invitations, announcements, letters, thank you cards, greeting cards, holiday cards, postcards, business cards, rsvps, christmas cards, Save the Dates or anything else you fancy. also great for Mailing, sending personal mail, direct mail . The A7 envelopes can fit inside envelope sizes of A8, A9, A10.

PERFECT SIZE ENVELOPES 6" x 9" business envelopes are ideal for mailing a wide variety of items,Sheets of papers folded , letters,wedding invitations, direct mail,greeting cards,Christmas cards, catalogs storing some small items, and more

SIMPLE TO USE Just peel off the business envelopes self seal backing and press down on the flap to use the 9" envelopes self seal adhesive 28Lb heavy paper

STOCK UP ON ENVELOPES AND SAVE This envelopes self seal QuickStrip seal pack includes 250 of the finest quality office envelopes for a great price

PACKAGE INCLUDE - 100pcs/Pack 7.5"x5.5" (Inside usable dimensions:7"x5") tamper-resistant waterproof packing list pouches.

HIGH CLEAR - High clear outer surface, you can clearly see the packing list, labels and invoice documents in the transparent plastic envelope.

EASY TO USE - You just need to peel off the paper backing and paste it on the packaging.

✉️【EASY TO PEEL & SEAL】: Say goodbye to lick the envelopes. Our 5x7 white envelopes are ultra strong adhesive designs that can keep the envelope closed to arrive safely to destination. The peel &stick seal feature makes the envelope seal quickly and effortlessly - without extra moisteners, waxes.

✉️【HEAVYWEIGHT 5x7 ENVELOPES】: 120 GSM/32lb BOND/80lb TEXT. The 5x7 envelopes are crafted with premium thick cardstock. It has good weight and nice texture, you can write with calligraphy pen or ink on it. No matter mailing dark-colored or bright-colored cards, our white heavyweight envelopes are safe enough to protect privacy contents.

✉️【STANDARD A7 WHITE ENVELOPES】: Our A7 greeting card envelopes measure 5 ¼ in x 7 ¼ in / 5-1 / 4" x 7-1 / 4" / 5.25" x 7.25" / 133.35mm x 184.15mm. Impeccable size makes them perfectly fit 5x7 cards, pictures, wedding invitations, baby shower, RSVP cards, Christmas cards and 4x6 invitation cards.