Thermos - Hotter, colder, fresher, longer. Lightweight and durable stainless steel double wall vacuum insulated 470 ml travel mug keeps hot for up to 7 hours and cold for up to 18 hours. Keeps cool to the touch with hot liquids and sweatproof with cold. Easy to use 'drinklock' sealing lid with built-in tea hook, comfortable handle. Fits most vehicle cup holders.