Tyvek envelopes provide superior puncture, tear and moisture protection.
12" x 16" x 2" First Class Expandable Tyvek Envelopes. Tyvek 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. 100 per case.
- Tyvek Envelopes useful for shipping flat items such as documents or catalogs
- White "First Class" Tyvek constructed from 18 lb. olefin
- Envelopes expand to hold bulky items
- Ten times stronger than paper envelopes