Itoya of Americal, Ltd Products - Polyzip Envelope, w/Zip Clsre, 1-1/4" Exp., 9"x12", Clear - Sold as 1 EA - Durable, acid-free, archival-safe polypropylene PolyZip envelope provides the best way to organize, store and carry a wide variety of materials. Protects its contents from the elements, forming a dust-resistant and water-resistant seal unmatched by traditional paper and poly envelopes. Its expanding gusset lets it accommodate everything from a single item to a stack of items. The clear fr