The WMF Impulse thermos mug is a stylish, environmentally friendly companion for everyday use. It features a unique, award-winning design that is elegant, modern, and ergonomic for perfect handling. Its unique double-walled ThermaPro thermos liner keeps drinks hot for up to 8 hours or cold for up to 12 hours, ensuring a perfect drinking experience throughout the day. The mug allows drinking from any side for convenience. Easy to clean for optimal hygiene, it has a fully removable, 100% leak-proof lid and compact dimensions that fit most car cup holders - ideal for taking on the go.