9″ x 12″ – Tyvek Envelopes

White Flat Tyvek Envelopes

Tyvek® envelopes provide superior puncture, tear and moisture protection.

– Constructed from 14 lb. olefin.
– Ten times stronger than paper envelopes.
– Feature self-seal closure.
– Available in plain, First Class and Air Mail printed borders.

Opens on 12″