These 10 x 13 x 2 inch kraft expandable self-seal envelopes are built from 40 lb paper stock and feature a peel-strip adhesive closure that requires no moisture to seal. A protective tear strip shields the adhesive from dust and debris during storage, preserving closure integrity until the envelope is ready for use.

The 2" side-expansion gusset handles catalogs, multi-page packets, contracts, and other bulky documents that flat envelopes cannot accommodate. Side-loading orientation simplifies high-volume insertion workflows in e-commerce fulfillment centers, publishing distribution, legal and medical offices, and B2B shipping operations.

Envelopes measure 13 x 10 x 2 inches. Each case contains 100 envelopes and ships via parcel carrier.