Shake it upShake up a perfect smoothie protein or supplement shake. The Hydro Flask 24 oz Insulated Shaker Bottle features a comfortable ergonomic design and a leakproof flip-top chug spout. An internal whisk ball mixes it right every time and the insulation helps keep contents cold for up to 24 hours.24 hours coldLeakproof when closedPure taste no flavor transferTempShield®? double-wall vacuum insulationDurable stainless steelSpring-assisted flip top chug spoutWhisk ball for quick and easy mixing even the thickest supplementsRemovable gasket for easy cleaningErgonomic shape for a good gripDishwasher safeNot intended for use with hot beveragesFor Required California AB1200 Disclosure Click Here