Feature

●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


Description

9 x 12 inch first Class 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.