Call us: M-F 8am-8pm ET 800-926-6100
Business Envelopes & Mailers
Bubble Mailers
Business Envelopes
CD/Disk/Video Mailers
Corrugated Mailers
Dura-Bag Mailers
Eco-Shippers
Kraft Paper
Long and Narrow Mailing Bags | Poly Mailers
Mailing Tubes
Padded Mailers
Paper with Window
Postal Approved
Security Envelopes
See-Through
Self Adhesive Shipping Roll
Stayflats Mailers
Tear-Resistant Envelopes
Tyvek Envelopes
Ideal for mailing invoices, letters, and other documents requiring two windows. Security envelopes feature blue tint for privacy and confidentiality and have gummed flap closure. Top window size is 1-3/16" x 3-1/2". Bottom window size is 1" x 4".