Stay hydrated anywhere, at any time with Hydro Flask vacuum bottle. It has a double-wall insulation and a durable construction that keeps your drinks icy for up to 24 hours or hot for up to 12 hours.1-TempShield insulation protects temperature for hours.2-Made of 18/8 pro-grade stainless steel.3-Durable, sweat-free, and slip-free.4-BPA-Free and Phthalate-Free.5-Dishwasher-safe.6-Lifetime warranty.