21 Oz Standard Mouth Black MATGR35001W and you'll be ready for and you'll be ready for the extra long haul This durable throw toy is inspired by natural volcanic glass formed by rapidly cooling lava from Pacific Northwest volcanoes 24 hours cold 12 hours hotTempShield double wall vacuum insulationLeakproof when closedPure taste no flavor transferDurable stainless steelFits most cupholdersDishwasher safeNot for use on a stove in a microwave or freezerKeep hot liquids out of the reach of childrenFor Required California AB1200 Disclosure 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