Recharge your sense of adventure with the Thermos 16 or 18oz Stainless Steel Mug. From city streets to mountain trails, these mugs keep drinks protected everywhere you go. Thermos vacuum insulation technology keeps coffee and tea hot 5 to 7 hours. Cold drinks stay icy for 14 to 18 hours. A comfort-soft handle fits perfectly in your hand and a slide lock lid prevents spills and leaks. It is made with minimal parts that are dishwasher safe and easy to clean. Just fill it up and you are ready to take on the day. Temperatures based on size.