Double Window Envelopes in Envelopes(158)

Double window envelopes are designed to display both the sender's and recipient's addresses through two transparent windows. This makes them ideal for mailing invoices, business statements, checks, and other documents where address information appears on the paper inside. Using double window envelopes reduces the need for printing addresses directly on the envelope, saving time and minimizing errors. They are commonly used in offices and businesses that send out large volumes of mail, ensuring professional presentation and efficient processing.

Choosing the right size double window envelope depends on the size of your documents and where the address information is positioned. Common sizes include #8, #9, and #10 envelopes, with dimensions ranging roughly from 3 5/8" x 8 11/16" to 4 1/8" x 9 1/2". Measure your documents and check where the address lines fall so they align perfectly with the windows. Also, consider the thickness of your documents to ensure they fit comfortably without bulging. Many envelopes come with security tints to protect sensitive information, which is an added benefit to consider.

Most double window envelopes come with self-seal strips or peel-and-stick flaps for quick and secure sealing. To seal properly, remove the protective strip and press the flap firmly along the adhesive area. This method is convenient and helps prevent tampering. For extra security, especially when mailing sensitive documents, you can reinforce the seal with tape or use envelopes with security tints inside. Avoid licking the flap as it may not provide a strong seal and can be less hygienic.

While the windows on double window envelopes are meant to show addresses printed on the enclosed documents, you can write additional notes or markings on the front if needed. However, avoid writing over the window areas to keep the addresses visible and clear for postal processing. Using a pen or marker that won't smudge is best. If you need to include extra information like handling instructions, place them in a blank area away from the windows or use labels designed for envelopes.

Double window envelopes are generally designed for one-time use, especially those with self-seal or peel-and-stick closures, as opening them usually damages the seal. Some people reuse envelopes by carefully opening the flap, but this can compromise security and the professional appearance. For important or confidential mailings, it's better to use a new envelope to ensure the contents stay protected and the envelope looks neat. Walmart offers bulk packs, making it easy to keep a steady supply for your mailing needs.