Made of environmentally-friendly high quality oxford material. Dirt-resistant easy to clean, durable waterproof polyester lining, can maintain food temperature. High quality metal zippers will not easy break, thick handle reduce weight hurting will make you carry it more conveniently. Waterproof materials, no leak issue anymore. Also foldable save space. NOTE: it will takes 8-16 days to arrive you, shipping by USPS.