An ideal choice for people on the go, the THERMOS Stainless King Vacuum Insulated Travel Mug is built to last and loaded with features to make for a more enjoyable drinking experience. THERMOS vacuum insulation technology virtually eliminates temperature change within the beverage container by creating an airless space between two stainless steel walls. The result is a superior insulated container you can depend on to keep your beverages hotter, colder, fresher, longer. This travel mug keeps beverages hot for 5 hours or cold for 9, making it a great choice for long days out and about or in the office. Constructed with double wall stainless steel, this 16 ounce travel mug is virtually durable, yet its sleek design is both eye-catching and functional.