Your daily sip.Stainless steel and cupholder compatible the reusable refillable 21 oz Standard Mouth insulated water bottle keeps cold drinks cold for 24 hours hot drinks hot for up to 12 hours and holds enough hydration for hours of fun.24 hours cold 12 hours hotTempShield double-wall vacuum insulationLeakproof when closedPure taste no flavor transferDurable stainless steelFits most cupholdersBPA-FreeDishwasher safeNot for use on a stove in a microwave or freezerKeep hot liquids out of the reach of children