Order Double Window envelopes and get FREE shipping! Perfect for mailing checks. invoices, and other business-related documents. These envelopes feature two transparent poly film windows. With these two left-hand windows, you can display both return and mailing addresses. No handwritten addresses required, which makes for a fast and efficient mailing process. The sizing and positioning of these two windows are compatible with many popular software packages. Choose from a variety of different envelope and window sizes, with standard gum or self seal options. Select Double window envelopes for a fast and efficient business mailing option.
Double window envelopes also feature a security tint printed pattern on the interior. This pattern darkens the paper material and obscures the contents of your envelope, which ensures your content remains hidden from view. Ideal for mailing personal or business information such as financial documents, medical records, checks, bank statements, or legal documents. Available in multiple types of double window envelopes, including Quickbooks check envelopes (sized 3 5/8 x 8 3/4) and standard double window envelopes (sized 4 1/8 x 9 1/2). If a standard design does not suit your needs, we can work with you to create a custom-made envelope that's just right for you. Use Double Window envelopes to mail sensitive information quickly and securely.