Best Endoc Booklet Envelopes in 2026

Heavyweight 5x7 envelopes in White; Our A7 Envelopes are made from a bright white, heavy paper stock with a Vellum finish giving you a clean durable envelope for your wedding invitations, greeting cards, or postcards. Unlike the Competition, our envelopes are manufactured from start to finish right here in the USA!

Bright White Vellum Finish; Made to a 98 brightness, these envelopes give you clean look & premium feel that can be easily written on or printed with an Inkjet or Laser printer.

Standard A7 Size & Design; These white A7 envelopes are made to the standard A7 size of 5 1/4" x 7 1/4" and feature a Gummed Booklet Style Square Flap

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.

Invitation envelopes; ideal for mailing computer-generated wedding, birthday, or other special event invites

Includes 100 blank A9 envelopes made of 24-pound white woven paper for reliable strength

Holds folded 8-1/2 x 11 inch sheets of paper

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

SUPER STRONG CONSTRUCTION – Standard White Envelopes Are Crafted of Heavy, Durable 24lb Paper for Exceptional Rip, Tear & Puncture Resistance

BOOKLET ORIENTATION – Classic Open From side Style Enables Fast, Convenient Stuffing for Letter, Legal Document, Pamphlet, crafts, Coupons, Greeting Card, Christmas Cards, Wedding Invitations, hand made greeting cards, folded letters, CDs, Other Common Mailers

LETTER SIZE PRICING – Ideal 6” x 9” Size Offers Maximum Space Within USPS 1-Stamp Dimension Requirements; Buy Bulk & Save Big on Both Supplies & Shipping

9 x 12 BOOKLET ENVELOPE PACK – Business Envelopes Are Perfect for Mailing a Variety of Big Documents Including Booklets, Catalogs, Forms, Invoices & Cards Great envelopes for mailing tax returns

PEEL AND SEAL CONVENIENCE – Easy Close Design Features Durable No Lick Flap with Pre-Moistened Adhesive Strip & Removable Backing; Just Peel, Press & Send

HEAVY 28 LB PAPER STOCK – Prevents Rips, Tears, Weather & Travel Damage While Providing Thick, Durable Surface for Printed Return Address & Other Custom Detail

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.

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

Size: A7 size colorful 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 colorful envelope is very suitable for 5x7 cards/photos. (Pink, light green, light blue, light purple, bright red, lake blue, yellow, orange, dark purple, green) These colorful envelopes are also very suitable for direct mail, letters, postcards, weddings, birthdays, baby showers, graduations.

Sealing: This is a huge time-saving card 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.

VERSATILE MINI ENVELOPE: If you’re looking for an envelope for coin collections, craft supplies, buttons, seeds, invitation inserts, and more, our #1 coin envelopes are a great option. They are designed to fit inside direct mail, letters, and even holiday gift boxes. Use these coin envelopes to hold stamps, party favors, small manufacturing parts/inventory items, business cards, gift cards, and other small items.

MOISTENABLE GLUE SEAL: These moistenable envelopes are perfect for any use. You can even use a moistener to moisten the glue — it’s a huge time-saver! Simply moisten the strip of glue, press, and seal. It couldn't be easier! This type of adhesive is great for, wedding announcement inserts, personal notes, and more.

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.

9 x 12 BOOKLET ENVELOPE PACK – Business Envelopes Are Perfect for Mailing a Variety of Big Documents Including Booklets, Catalogs, Forms, Invoices & Cards Great envelopes for mailing tax returns

PEEL AND SEAL CONVENIENCE – Easy Close Design Features Durable No Lick Flap with Pre-Moistened Adhesive Strip & Removable Backing; Just Peel, Press & Send

HEAVY 28 LB PAPER STOCK – Prevents Rips, Tears, Weather & Travel Damage While Providing Thick, Durable Surface for Printed Return Address & Other Custom Detail

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.

PERFECTLY SIZED 6X9 BOOKLET ENVELOPES: These booklet envelopes are ideal for mailing a wide range documents and paper materials, including letters,Christmas cards,wedding invitations, direct mail,storing some small items ,catalogs and more.

EASY SEAL ENVELOPES: These 6x9 self sealing envelopes come with easy-to-use peel & seal strips, which delivers hassle-free and moisture-free closure. Just peel off the strip to expose the adhesive on the flaps of these 6 x 9 booklet envelopes. Press down on the flaps to seal the envelopes.

STRONG AND ECONOMICAL: Made from 28 pound paper, these 6x9 self sealing envelopes are much more durable than regular 24 pound business envelopes. They can carry heavier stacks of documents, newsletters, and other marketing materials.

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

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 120 g kraft paper, thick and durable, with excellent sealing performance. Your privacy will be well protected.

Privacy Protection: These invitation envelopes for 5x7 cards are thick, sturdy and not see- through, keeping your contents private and refusing to leak. 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.

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.

6x9 Envelopes: Dimension of Eupako small catalog envelopes is 6x9 inches, smooth touching and professional looking, designed with a self seal and pre-folded flap, saving much time when handling multiple mailings.

Set of 250: Package includes 250 pack 6x9 envelopes self seal, meeting the need of home, office and business use. The catalog mailing envelopes are ideal for mailing catalogs, photos, booklets, bulletins, brochures, handmade cards, Christmas cards, wedding invitations and folded sheets of papers.

Self-sealing Flap: The brown catalog envelope 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 is quite strong, secure and lasting, keeping contents from falling out when transiting.

Navy Envelope

Size: 9 x 12 inches

Quantity: 50 Envelopes per Pack

SUPER STRONG CONSTRUCTION – Standard White Envelopes Are Crafted of Heavy, Durable 24lb Paper for Exceptional Rip, Tear & Puncture Resistance

BOOKLET ORIENTATION – Classic Open From side Style Enables Fast, Convenient Stuffing for Letter, Legal Document, Pamphlet, crafts, Coupons, Greeting Card, Christmas Cards, Wedding Invitations, hand made greeting cards, folded letters, CDs, Other Common Mailers

LETTER SIZE PRICING – Ideal 6” x 9” Size Offers Maximum Space Within USPS 1-Stamp Dimension Requirements; Buy Bulk & Save Big on Both Supplies & Shipping

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 - 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

✔️ 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 laser jet printers

Plenty Full Face Window Envelopes Set: the package comes with 100 sets of 9 x 12 inches full face window envelopes, enough quantity for your daily use, which is enough to ensure you always have creative photos or certificates full face window envelopes on hand when you needed

Window Design of Envelopes: these white window business envelopes are designed with full face window envelopes, which are more intuitive display of the item what you want to display; Suitable for sending photos, certificates, invoices, headshots, letters, documents, checks, thank you notes, greeting cards, invitations, and announcements

Fit for Most Occasions: it's a good idea to use decals, markers or labels to easily customize these 9 x 12 inches full face window envelopes for baby showers, birthdays, anniversaries, weddings, greetings, graduations, Thanksgivings, Christmas, Valentine's, and many other holidays; In addition, it is nice to give to friends and family as a gift to display your most beloved memories of that day

Plenty Full Face Window Envelopes Set: the package comes with 100 sets of 6 x 9 inches full face window envelopes, enough quantity for your daily use, which is enough to ensure you always have creative photos or certificates full face window envelopes on hand when you needed

Window Design of Envelopes: these white window business envelopes are designed with full face window envelopes, which are more intuitive display of the item what you want to display; Suitable for sending photos, certificates, invoices, headshots, letters, documents, checks, thank you notes, greeting cards, invitations, and announcements

Fit for Most Occasions: it's a good idea to use decals, markers or labels to easily customize these full face window envelopes for baby showers, birthdays, anniversaries, weddings, greetings, graduations, Thanksgivings, Christmas, Valentine's, and many other holidays; In addition, it is nice to give to friends and family as a gift to display your most beloved memories of that day