The main material of water beer ice cooler bag is environmental protection material of engineering plastics (pp, lldpe), and the insulation layer is non-fluorinated polyurethane. It can reach 24-120 hours depending on the thickness of the insulation layer. High density, strong cold preservation, lightweight, soft texture, non - hard, non - toxic, known as environmental materials. The cooling effect exceeds the american industry standard. According to the product quality, it can be divided into different types, including plastic, cloth, foam, metal, wooden and other refrigerated bags.