Hydro Flask Standard Flex

- 24 hours cold, 12 hours hot - TempShield double-wall vacuum insulation - Leakproof when closed - Pure taste, no flavor transfer - Durable stainless steel - Fits most cupholders - BPA-Free - Dishwasher safe - Not for use on a stove, in a microwave or freezer - Keep hot liquids out of the reach of children Stainless steel, cupholder compatible, fits right in your pack—our largest reusable, refillable Standard Mouth insulated water bottle keeps cold drinks cold for 24 hours, hot drinks hot for up to 12, and holds enough hydration for tons of fun.