Mixer bottle for shakes and smoothies.Leak-proof lid for no mess mixing and carrying.Rounded bottom and weighted shaker ball that are smartly engineered to work together.Volume marking for easy measurement.Convenient carry handle.Engineered for easier mixing and cleaning.Top-rack dishwasher safe and BPA-free.Fits most cup holders.N/AYour shakes are safe here; The Shake & Go™ Fit Mixer bottle is 100% percent leak-proof—no more messes in mixing or carrying. It has a rounded bottom and weighted shaker ball that are smartly engineered to work together to help reduce the clumps and build-up that are common in other bottles. Volume markings allow for easy measuring and a convenient handle makes it easy to carry on-the-go. Engineered for easier mixing and cleaning, its design combines attractive aesthetics with convenient features for those who see nutrition as a way of life. The bottle and lid are BPA-free and top-rack dishwasher safe for a convenient, complete clean. Fits most cup holders.