20OZ/650ML.Easily hydrate and reduce the number of trips to the water fountain. The large handle has a comfortable grip and is easy to carry and lift. Here are some recommended uses for this shake cup: PROTEIN SHAKES: Perfect for mixing and enjoying protein shakes, this shake cup ensures smooth, well-blended shakes. Smoothies: Blend your favorite fruits, veggies, yogurt and liquids in the shake cup for a quick, portable shake. MEAL REPLACEMENT SHAKES: If you’re on the go or need a quick meal, milkshake cups are ideal for preparing and drinking meal replacement shakes. PRE-SPORTS DRINK: Conveniently refuel before a workout by mixing a pre-workout supplement with water or juice in a milkshake cup.