The flip-top thermos mug by Kyocera features a practical, durable ceramic interior coating. This prevents undesirable flavours from different drinks like tea and coffee from being transferred and effectively protects against contamination and corrosion in contrast to thermos mugs that have metal or other reactive materials on the inside. Whether it’s used to transport steaming hot beverages or ice-cold drinks, the double wall vacuum of the travel mug made from stainless steel keeps liquids at the same temperature for longer. The leak-proof flip-top lid can be opened with one hand.