#9 window envelopes are one of the most popular commercial sized envelopes and are commonly used as a reply envelope for invoice and business mailings. They are also machine-insertable for higher volume direct mail.
- Simple, online ordering with user-friendly design process.
- Online design studio allows you to upload your own artwork or use a design template.
- Moisture/gum-seal flaps open from the top for easy access.
- Includes One Window
- Includes Security Priniting