• Tyvek envelopes provide superior puncture, tear and moisture protection.
  • Constructed from 14 lb. olefin.
  • Ten times stronger than paper envelopes.
  • Feature a special seal that once broken, the word "OPENED" appears in red on the flap.
Strength Material:
14 lb. Olefin
Shipping Unit:
100 PER CASE
Width:
9.00"
Height:
12.00"