Starts cold. Stays cold. The 24oz stainless steel cold tumbler with straw from the Icon™ series by thermos helps you stay hydrated to take on the day. Equipped with a stainless-steel straw to keep up with whatever your day has in store. From the non-slip Griptec™ base to superior vacuum insulation and durable True-coat™ finishes, the Icon™ series by thermos is a celebration of what's made us thrive for over a century: meticulous design, thoughtful engineering, and a relentless desire to make people's days easier, every time. Not for use with hot liquids. Dishwasher safe (top rack dishwasher safe for added convenience.) Stays cold for 24 hours.