* PRE AND POST IN ONE SHAKER with micro grids for that perfect blend: stop carrying two shaker bottles to the gym, school or work. Stay prepared with the only high-performance shaker that can keep you fueled for any phase of your game.
* HOLDS 36oz TOTAl- 18 oz on each side. That's enough for a scoop and a half of your favorite protein drinks.
* The lid and bottle base are designed for the toughest workouts.
* LEAK PROOF SEAL - Snaps in secure unlike twist on lids. There is a rubber gasket seal that seals the lid completely closed guaranteeing no leaks. Other shakers have the twist lids that warp or bend over time. The Alpha cup lid design stays lock tight every time.
* BPA FREE