The 16oz Stainless King™ Mug from Thermos® keeps drinks hot for up to 7 hours and cold for up to 18 hours using double-wall vacuum insulation. Built for serious daily use — 18/8 stainless steel construction with a sweat-proof, condensation-free exterior that won't ring your desk. Fits most standard car cup holders. Specifications: 16oz capacity | Double-wall vacuum insulated | 18/8 stainless steel | Keeps drinks hot 7 hours, cold 18 hours | Sweat-proof exterior | Cup holder compatible | Dishwasher safe — top rack only Shop all Thermos® drinkware or view best sellers .