Beat the heat and conquer your day by putting this 24oz. vacuum bottle to use! With an interior made of 304 stainless steel and an exterior made of 201 stainless steel, this item is also double-wall vacuum insulated and includes a powder-coated finish. The included screw-on lid is made of polypropylene plastic and features a handle for an easier carrying experience. We recommend washing this bottle by hand only and to avoid putting it in the microwave or freezer. This impressive product can keep liquids hot for 8 hours and cold for 18 hours.