OGGI's ThermoMug is a double-walled vacuum insulated stainless steel mug that will keep your beverage at the same temperature you poured it for your continuous enjoyment. Keeps contents hot for 3 hours and cold for 9 hours. This lightweight 14oz (420ml) insulated mug is the ideal size for taking on the go. It features a comfortable, well-balanced handle to provide a "one size fits all" secure grip. The clear lid is engineered with a secure slider drinking tab which not only provides additional insulation but also keeps splashes and spills to a minimum. The exterior finish is sweatproof and comes in many different colors. Great for use as a coffee mug in the car, at the office, on a morning walk, or relaxing at home. The 18/8 stainless steel is also durable enough to use as a travel thermos while outdoors.