Detailed Product Description Material: nylon/420D oxford/600D oxford Size: 23*45cm/28*58, as your request Color: various The advantages of Barrel type ice packs/cooler bag 1) Arrel type ice packs, inner lining for thermal insulation layer, can reduce heat loss to a minimum.2) Thick round bottom, convenient ice packs make it to be placed as you will3) High-frequency voltage welding technology, ...