10 x 13" Black Tyvek® Envelopes Tyvek® envelopes provide superior puncture, tear and moisture protection. Colorful envelopes make your mailing stand out.
Constructed from 14 lb. olefin.
Ten times stronger than paper envelopes.
Feature self-seal closure.
Color/Print: Black
Opening: End
Price Unit Description: Case
Length: 13"
Weight: 3.36
Width: 10"