The BlenderBottle Pro Series Tritan Shaker Cups sport our updated lid, featuring a wider carry loop, Spout Guard protection to keep dirty gym fingers at bay, and a more ergonomic flip cap. With our leak-proof guarantee, you can rest assured that you have a secure seal, whether you're mixing a shake or just drinking water. Say 'goodbye' to lumpy protein shakes and 'hello' to smooth, great-tasting drinks. The patented BlenderBall wire whisk found only in BlenderBottle shaker cups whips around inside the bottle as you shake, delivering unparalleled mixing. Add ingredients like peanut butter, applesauce, or yogurt to your protein or meal replacement, and the BlenderBall whisk blends them together with ease. Like all BlenderBottle brand shaker cups, our Pro series shakers are made using high-quality, BPA- and phthalate-free materials. Building off the tried-and-true design of the BlenderBottle Classic, the Pro32 adds customer-requested features and refinements to deliver a shaker that's a cut above the rest. The Pro32 features Eastman Tritan plastic to guard against lingering flavors and a rounded base to ensure that the BlenderBall whisk reaches every last bit of powder.