The Thermos 40 oz. Icon Vacuum Insulated Water Bottle keeps you hydrated to take on the day. From the GripTec technology to superior vacuum insulation and durable True-Coat finishes, the Icon Series is a celebration of what has made Thermos thrive for over a century: meticulous design, thoughtful engineering, and a relentless desire to make people's days easier, every time. It is also equipped with a Dura-Shield covered drinking lip and wide mouth opening to keep up with your busy day. No detail has been left behind. Features: Vacuum insulation keeps drinks hot for up to 18 hours and cold for up to 24 hours. Durable stainless steel construction with sweatproof exterior. Rapid Cap quick-release stopper removes in a single turn. Dura-Shield covered opening reduces exposure to outside elements. Comfort sip drink lip has a smooth wide mouth neck that is easy to clean and accommodates ice. Top-rack dishwasher safe.