Thermo mug 500 ml features stainless steel double walls with vacuum insulation that slow down the release of temperature to the surroundings, functioning like a thermos, strap for more comfortable wearing or attaching, includes recycled stainless steel icon on the product, packed in brown carton box, product made from stainless steel, silicone, PP, PU, ​​polyester, keeps beverages hot for up to 20 hours +leakproof