TO GO TUMBLER is ideal for various scenes throughout your day, working or relaxing. The newly added version comes with a plug which prevents spills on the go. The rotating plug can be opened and closed easily, letting you drink with ease. Each detail is designed to assure comfortable drinking and easy washing. Vacuum insulated, the tumbler retains the temperature and flavor of drinks for a long time. Featuring matte texture and calm colors, it is a clean and timeless design. Double walled stainless steel tumbler prevents heat transfer with a vacuum between its inner and outer walls. The foil layer covering the inner wall reflects heat back inside, contributing to excellent heat and cold retention.240ml: Hot above 65°C/149°F (1 hr), cold below 10°C/50°F (1 hrs)360ml: Hot above 75°C/167°F (1 hr), cold below 10°C/50°F (3 hrs) Capacity: 240ml/8oz OR 360ml/12oz Materials: 18-8 Stainless steel (powder coating) Copolyester, Silicone Upper temperature tolerance: 100℃/212℉ Dishwasher safe