The Stainless Steel Double-Layer Insulated Cup is a high-performance drinking container designed to maintain beverage temperatures, suitable for everyday life and outdoor activities.Constructed with premium stainless steel, featuring a 304 stainless steel interior and a 201 stainless steel exterior, this insulated cup offers excellent thermal retention. It effectively keeps hot and cold drinks at their ideal temperatures, allowing you to enjoy your beverages anytime, whether at the office or on the go.