Stay hydrated anywhere, at any time with Hydro Flask bottle. This double-walled insulated vacuum bottle keeps your drinks icy for up to 24 hours or hot for up to 12 hours.1-Made of 18/8 pro-grade stainless.2-Sweat-free and slip-free.3-Wide mouth for easy filling with liquids or ice cubes.4-Dishwasher-safe.