Best Booklet Mailing Envelopes of 2026

Aimoh's Self-Seal Kraft Catalog Mailing Envelopes are perfect for large documents, business correspondence, magazines, brochures, and more. Made of durable 28lb golden kraft paper stock, these multi-purpose envelopes are tamper-resistant and provide privacy for your contents. The ultra-strong self-adhesive strip ensures a secure seal that won't easily open or tear. Each box comes with 100 envelopes, providing great value for everyday business use.

EnDoc Open Side Envelopes are the perfect solution for all your mailing needs. Made of durable 24lb paper, these envelopes are super strong and resistant to rips, tears, and punctures. The classic open side style allows for fast and convenient stuffing of various items such as letters, legal documents, pamphlets, coupons, greeting cards, and more. With its ideal 6" x 9" size, these envelopes meet USPS 1-stamp dimension requirements, making them cost-effective for bulk mailing. Whether you need to send mail for home, office, business, or legal purposes, this pack of 50 envelopes has got you covered. Plus, they are proudly made in the USA, supporting American manufacturing.

EnDoc 6x9 Self Seal Envelopes are the perfect solution for all your mailing needs. These business envelopes are designed to accommodate a wide range of items, including folded sheets of paper, letters, wedding invitations, direct mail, greeting cards, Christmas cards, catalogs, and even small items. The self-seal adhesive makes it simple and hassle-free to use - just peel off the backing and press down on the flap. With a pack of 250 envelopes, you can stock up and save. The side-open booklet design allows for easy insertion and removal of documents, making it ideal for mailing party invitations, personalized photograph albums, newsletters, and marketing materials. Upgrade your mailing experience with EnDoc 6x9 Self Seal Envelopes.

These 6x9 booklet envelopes are perfect for holding half size paper, catalogs, cards, or brochures. The open side design makes stuffing easy, and the latex self-seal ensures strong, lasting seal. The security tint and durable construction provide complete security for sensitive documents during transit, while the 6x9 size allows for organized storage of personal and company documents.

Introducing EnDoc Window Envelopes, the perfect solution for all your mailing needs. These 9x12 inch envelopes feature a clear full view window, measuring at 7x9 3/4 inches, allowing you to easily showcase brochures, photos, certificates, catalogs, and more. The heavy moistenable glue flap ensures a secure closure, while the bright white 28 lb paper adds a professional touch. With a pack of 50 envelopes, you'll have plenty to use for company promotions, headshots, and other important documents. Say goodbye to the hassle of finding the right envelope for your mailing needs - EnDoc Window Envelopes have got you covered.

These 6” x 9” booklet envelopes are perfect for mailing large, flat but bulky materials, such as pamphlets, brochures, sales literature, booklets, folders, annual reports, magazines, catalogs, and more. The traditional moistenable adhesive sealing method makes them easy to seal quickly. They are made from heavyweight LUX paper stock, which is thicker and more durable than printer paper, to protect whatever is inside. These envelopes come in a variety of styles and colors that are adaptable to any use.

Introducing the Quality Park Envelope, the perfect solution for all your mailing, storage, and organizing needs. With its fully gummed flaps, this envelope ensures a secure seal to keep your contents protected. Whether you're sending important documents or simply need to store them flat without folding, these 9 x 12 envelopes are just what you need. The envelope opens on the long side, making it easy to insert and retrieve your items. Plus, with 250 envelopes conveniently packed in each box, you won't have to worry about repurchasing frequently. Upgrade your mailing and organizational game with the Quality Park Envelope.

The JAM Paper Clear Envelopes offer a convenient way to keep your important documents safe and organized. Each envelope measures 12 by 18 inches, providing plenty of space for larger papers or multiple sheets. The clear design lets you quickly see what's inside without opening it, saving you time. These envelopes expand up to one inch, so you can store bulkier items comfortably. Plus, the button and string closure ensures your contents stay secure, so you don’t have to worry about papers falling out. Whether for work, school, or home use, these envelopes make organizing your papers easy and reliable.

Introducing the LUXPaper Booklet Envelopes, the perfect solution for all your mailing needs. With a size of 7 x 10 inches and a pack of 50 envelopes, these 24lb. Bright White envelopes are ideal for various applications such as catalogs, annual reports, brochures, magazines, and invitations. Whether you're sending out business mailings, direct mail, corporate mailings, financial mailings, or personal mail, these envelopes are a versatile choice. Plus, they are printable on both off-set printing presses and some home printers, providing you with the convenience of customization. Get your LUXPaper Booklet Envelopes today and experience the ease of professional mailing.

The LUXPaper 9x12 Booklet Envelopes offer a professional solution for mailing flat, bulky items like brochures, catalogs, and reports. Their large size and long rectangular flap make filling and sealing easy, saving you time. The envelopes use a traditional moisten-to-seal adhesive, allowing for quick and secure closure without extra tools. Plus, these envelopes are printer-friendly, so you can easily customize or label them at home or with commercial printers without worrying about smudges or jams. Made from thick 80 lb. text-weight paper, they provide durability and protection for your important documents. These envelopes combine convenience and quality for a smooth mailing experience.