Business Source Tyvek Expansion Envelopes 10 x 13 100PK
Business Source Tyvek Expansion Envelopes - Document - 10" Width x 13" Length - 1 1/2" Gusset - Peel & Seal - Tyvek - 100 / Carton - White Regular-weight Tyvek Envelopes are super strong, moisture-resistant and tear-resistant. Tyvek expansion is ideal for superior protection for mailing bulky items. These 14 lb. plain envelopes feature an open-end design for easy insertion of documents. Convenient peel-to-seal closure requires no moisture to close.