Protective and Flexible Bags & Pouches Among the most versatile of packaging forms, bags and pouches guard against oxidation, thermal shock, infection and leaks to meet a wide range of needs. Everyone wants a package that resists tears and punctures but still opens easily. Poly/Nylon/Poly and 100% Attane Resin Films are available for exceptional strength characteristics. Tyvek spunbonded olefin Header Bags are suited for custom procedural trays and other medical devices that require gas sterilization. Bags open easily with a smooth, fiber-free peel. Flexible Packaging can provide the materials suitable for your bags and pouches that will satisfy your packaging needs and looks.