BlenderBottle Classic Shaker Bottle Perfect for Protein Shakes and Pre Workout, 28-Ounce, Black

28-Ounce capacity (Note: measurements only go to 20 ounces), Patented mixing system uses 316 surgical-grade stainless steel Blender Ball found only in Blender Bottle brand shaker cups, Screw-on lid creates leak-proof seal, and flip cap snaps securely shut to keep contents contained; loop top for easy carrying or attaching keys, Perfect for protein shakes, smoothies, pancake batter, and more, Dishwasher safe, BPA- and phthalate-free; available in three sizes: 20-ounce, 28-ounce and 32-ounce