No. 10 Window Envelopes
Window envelopes are the most convenient way to mail invoices, bills, statements and business mailings. Envelopes with a window features an opening on the front of the envelope which allows addresses to show through for easy mailing. Available in a variety of sizes, colors and window styles. Choose from a wide range of sizes and colors to coordinate with your mailing needs, including window envelopes designed for standard business checks.