Perfect for mixing Evlution Nutrition Protein Shakes, Pre-Workouts and BCAAs , 28-ounce capacity with clear view panel and embossed marked measurements on the bottle go to 20 ounces , Patented mixing system uses 316 surgical-grade stainless steel BlenderBall found only in BlenderBottle brand shaker cups , Features include a patented secure screw-on lid, a wide mouth for easy mixing, ergonomic flip cap, and tapered spout , BPA-Free, Phthalate-Free, dishwasher safe and odor resistant