Product Details
First-class expansion envelopes measuring 10 x 13 x 1.5 inches feature heavyweight DuPont Tyvek material for durability and protection. These open-end style envelopes with Flap-Stik closure resist ripping, tearing, punctures, water, and moisture. Designed to securely mail bulky but lightweight items, they offer a strong alternative to boxes or cartons. The envelopes are easy to use with peel and seal functionality, providing reliable first-class mailing protection. Comes in a Carton of 100.
