12 x 16 x 2" First Class Expandable Tyvek® Envelopes $142.04 12 x 16 x 2" First Class Expandable Tyvek® EnvelopesTyvek® envelopes provide superior puncture, tear and moisture protection.Constructed from 18 lb. olefin. Ten times stronger than paper envelopes. Envelopes expand to hold bulky items. Feature self-seal... Add to Cart
12 x 16 x 2" White Expandable Tyvek® Envelopes $130.96 12 x 16 x 2" White Expandable Tyvek® EnvelopesTyvek® envelopes provide superior puncture, tear and moisture protection.Constructed from 18 lb. olefin. Ten times stronger than paper envelopes. Envelopes expand to hold bulky items. Feature self-seal... Add to Cart
13 x 19" White Flat Tyvek® Envelopes $145.46 13 x 19" White Flat Tyvek® EnvelopesTyvek® 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 and First Class printed... Add to Cart