Thermos Vacuum Insulated Mug 270ml Bear (JCV-270 KU) Material Material: Main body inside / stainless steel, outside body / stainless steel (acrylic resin paint), handle / polypropylene elastomer / polypropylene spout, packing / silicon Cold insulation effect: 1 hour / 9 degrees or less Thermal insulation effect: 1 hour / 71 degrees or more