12 x 16 x 4" White Expandable Tyvek® Envelopes $99.95 12 x 16 x 4" 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
10 x 15 x 2" White Expandable Tyvek® Envelopes $116.58 10 x 15 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
10 x 13 x 2" White Expandable Tyvek® Envelopes 100 PER CASE $107.70 10 x 13 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
10 x 13 x 2" White Expandable Tyvek® Envelopes 100 pr CASE $103.39 10 x 13 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
10 x 13 x 1 1/2" First Class Expandable Tyvek® Envelopes $95.47 10 x 13 x 1 1/2" 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... Add to Cart
10 x 13 x 1 1/2" White Expandable Tyvek® Envelopes $87.32 10 x 13 x 1 1/2" 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
9 x 12 x 2" White Expandable Tyvek® Envelopes $92.90 9 x 12 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 closure... Add to Cart
10 x 13" Tamper Evident Tyvek® Envelopes $101.72 10 x 13" Tamper Evident Tyvek® EnvelopesTyvek® 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... Add to Cart
9 x 12" Tamper Evident Tyvek® Envelopes $94.21 9 x 12" Tamper Evident Tyvek® EnvelopesTyvek® 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... Add to Cart
12 x 15 1/2" Yellow Tyvek® Envelopes $98.95 12 x 15 1/2" Yellow Tyvek® EnvelopesTyvek® 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... Add to Cart
12 x 15 1/2" Silver Tyvek® Envelopes $98.95 12 x 15 1/2" Silver Tyvek® EnvelopesTyvek® 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... Add to Cart
12 x 15 1/2" Red Tyvek® Envelopes $98.95 12 x 15 1/2" Red Tyvek® EnvelopesTyvek® 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... Add to Cart
12 x 15 1/2" Green Tyvek® Envelopes $98.95 12 x 15 1/2" Green Tyvek® EnvelopesTyvek® 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... Add to Cart
12 x 15 1/2" Black Tyvek® Envelopes $98.95 12 x 15 1/2" Black Tyvek® EnvelopesTyvek® 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... Add to Cart