1. Capacity: 5L. 2. Cold retaining: 24 hours. 3. Packing size: 55 x 37.5 x 26cm. 4. Material: Outer: HDPE. Inner: GOPP. Product feature: Outer is made of HDPE rubber outer, inner is made of environmental GOPP, durable with good quality, it is thick PU heat insulation materials inside. Its cold function can keep food fresh for as long as 24 hours, convenient for family travel. Barbecue and fishing. All kinds of dining-room, restaurants and fast food shop. Catering party. The dining hall, hotels, schools, hospitals, laboratories, supermarkets and other commercial, etc. Bottle cover could be took down as cup for drinking. Anti skid handle, comfortable and solid. Water mouth function design is suitable for drinking.