Maintain proper nutrition on the go with the BlenderBottle SportMixer. Featuring the BlenderBall wire whisk, the SportMixer does double duty as a water bottle and shaker cup, allowing you to mix protein, nutrition, and meal replacement shakes anytime, anywhere. To mix up a smooth, lump-free shake, simply add your ingredients, drop in the BlenderBall, and shake. The BlenderBall whips around inside the bottle, mixing your drinks to a smooth consistency, every time. Made of 316 surgical-grade stainless steel, the BlenderBall is designed to remain in the bottle until you've enjoyed its contents. Just drinking water? Feel free to leave the ball inside - it'll never rust, chip, or peel. The SportMixer's Bpa-free Eastman Tritan plastic is stain and odor resistant, allowing you to enjoy today's smoothie without tasting last week's protein shake. Other design elements include a unique SportLoop for easy carrying, and rubberized over molding on the lid for a firm hold. Designed with equal parts style, innovation, and versatility, the BlenderBottle SportMixer rises to the challenge of your active and busy lifestyle. 20 oz. Capacity Top-rack dishwasher safe BPA and Phthalate free Color: Cobalt.