Come and see our amazing products. The exterior of thermal lunch bag is made of Waterproof Cationic cloth, the middle is epe and the interior is insulated aluminum foil. Can Keeps your food warm or cold for hours wel.Very sturday and durable, No smell, tear resistant, wear-resistant, waterproof and dirt-proof, easy to clean. Pls confirm with us about the packing info, stock color and exact production time before placing your order.