Product Description: Co-Extruded, poly nylon vacuum pouches are 3 mils thick, and multi layered mixture of nylon and polyethylene resins. Material is high performing while remaining cost effective. All poly nylon vacuum pouches at southwestpolybag.com meet FDA and USDA requirements for food contact. Bags have a unique capability of conforming to odd food shapes. High tensile strength and puncture resistance keep your goods secure. Low oxygen transfer ensures your meat, fish, dried foods, and snack products remain fresh. http://www.printstandupbag.com