ProSoft PUL - Waterproof 1 Mil Lightweight PUL Fabric (Made in USA, sold by the yard) Soft Lightweight Jersey Waterproof Eco-Friendly Fabric. Polyester Lightweight Jersey on one side, waterproof barrier on the other side. CPSIA Certified, Food Safe Compliant Waterproof PUL Barrier Fabric. Ideal for applications that require waterproof fabric to be used as a hidden layer. irect contact with the skin, even baby skin. Soft durable flexible waterproof fabric widely used in the following industries - Food, Medical, Apparel, Veterinary & Cloth Diapers 75% polyester, 25% polyurethane, 1 mil PUL thickness 58-60" wide, 2.9 oz/sq.yard or 100 GSM, Made in USA