Modern life moves at a fast pace and reliability is a must whether you're traveling on a plane, car, bus, or train, working at a desk, standing on your feet for a 12-hour shift, or burning calories on a treadmill. This thermo mug combines intelligent design and innovative technologies to adapt to any commute, agenda, or lifestyle.450ml, this leak- and spill-proof mug keeps liquids piping hot or icy cold for hours, can be used with just one hand, fits comfortably in most cup holders, and cleans up easily.