The Stainless King 16-ounce Compact vacuum insulated beverage bottle is constructed with double wall stainless steel for durability and Thermos vacuum insulation technology to keep beverages hot for up to 12 hours or cold for up to 24 hours. This bottle features a twist and pour stopper which allows you to pour your beverage without removing the stopper completely. It also comes equipped with a built-in stainless steel serving cup so there is no need to pack an additional cup, allowing for beverage enjoyment anywhere. The exterior stays cool to the touch with hot liquids and sweat-proof with cold liquids.