Best Self-Adhesive Business Mailing Envelopes of 2025

The Mead #10 Security Envelopes come in a box of 45 and are perfect for all-purpose business mailing needs. The envelopes are made with 20-lb paper and have a white color with a security lining that ensures your privacy. The self-adhesive seal makes it easy to seal the envelope without the need for additional tools. The envelope size is 4-1/8" x 9-1/2", which is perfect for standard-sized documents.

Introducing the Sustainable Greetings Parchment Envelopes, a pack of 50 elegant retro parchment envelopes designed for all your mailing needs. Made of thick 90 GSM parchment paper, these envelopes are durable and sturdy. With dimensions of 9 ½ x 4 ¼ inches, they are perfect for mailing letters, greeting cards, posters, Christmas and thank you notes, as well as office documents like checks and invoices. The self-adhesive feature allows for easy sealing, saving you time and effort. The cream-colored retro designs add a touch of elegance to your correspondence. Say goodbye to the hassle of licking envelopes - simply peel, press, and seal. Choose the Sustainable Greetings Parchment Envelopes for all your business and personal mailing needs.

The #10 Security Tinted Self-Seal Envelopes are perfect for small businesses, home offices, and everyday use with a pack of 100 envelope, a security tint-pattern to protect contents, and a quick-seal closure that won't easily open or tear. These envelopes are compatible with most inkjet and laser printers, and the EnveGuard Technology ensures the highest quality products made from the safest materials.

These #10 envelopes come with a windowless design, premium security tint pattern, and ultra strong quick-seal closure. The security tint pattern helps protect sensitive information, while the quick-seal closure ensures that the envelopes won't easily open or tear. With 500 envelopes in every pack, these envelopes are perfect for everyday business correspondence and large mailing tasks.

The Splendoress Self-Seal Envelopes are an excellent choice for small businesses and home offices. With 100 envelopes in a pack, they are perfect for everyday mailing needs. The tinted security pattern ensures that your sensitive information remains protected, giving you peace of mind. You’ll love the self-stick adhesive strip, which eliminates the need to lick flaps, providing a quick and secure seal. Plus, these envelopes are compatible with both inkjet and laser printers, making addressing them a breeze. Enjoy the convenience of high-quality envelopes at an affordable price.

ACSTEP Envelopes are self-sealing security envelopes designed for business, mailing, and legal letter purposes. With a size of 4 1/8 x 9 1/2 inches, these windowless envelopes are perfect for professional use. The double window feature allows for easy visibility of the recipient's address and return address, eliminating the need for manual addressing. This not only saves time but also ensures accurate delivery. The self-seal design provides convenience by eliminating the need for moistening and sealing the envelopes manually. Made from high-quality materials, these ACSTEP Envelopes offer security and durability for your important documents. Whether you're sending business correspondence or legal letters, ACSTEP Envelopes provide a reliable and efficient solution for your mailing needs.

The xflyxin #10 Envelopes are designed for both personal and business use, providing a reliable solution for mailing letters, invoices, and more. Made from durable paper, these envelopes ensure your contents remain secure during transport. You will appreciate the smooth surface, which allows for easy writing or printing, making them perfect for custom designs. With a strong self-sealing feature, simply peel off the strip, press down, and you're done—no additional tools required. Plus, their sturdy construction offers excellent privacy protection, ensuring your information stays confidential.

These business envelopes are designed to fit QuickBooks laser checks or any computer business checks perfectly. The dual windows display essential information without leaking out sensitive details. The envelopes are made with thick 24 LB. white wove paper, a super adhesive seal and a high-quality security pattern to ensure contents are kept in utmost security. They have a peel and seal flap which creates a strong lasting seal with quick and easy self-seal design. Each box contains a long lasting five hundred envelope supply, ideal for business and home office use.

Mead Self-Seal Envelopes offer a practical solution for your mailing needs. Their self-sealing design eliminates the hassle of licking, allowing you to quickly and easily seal your envelopes. With a security tint, these envelopes protect your sensitive information, giving you peace of mind when sending important documents. The bulk pack of 500 ensures you have plenty of envelopes on hand for personal or business use, whether you're mailing invoices, letters, or cash. Plus, their classic white color adds a professional touch to your correspondence.

The HERKKA #10 Security Self-Seal Envelopes come in a pack of 500 with a Peel & Seal closure, perfect for securely sending checks, invoices, or other confidential documents. The envelopes have a premium security tint pattern to protect sensitive information and are ideal for standard business & legal documents. The windowless blank design allows for easy address printing or labels for mass mailing or to simply keep a bulk supply on hand for your home office. The ultra-strong SELF-SEAL adhesive strip ensures a full, super secure seal across each envelope's width that won't easily open or tear. Fully compatible with most inkjet and laser printers for quick and easy addressing.