Blenderbottle® pro 28™ marvel pro series protein shaker bottle - captain america authentic blenderbottle pro28 shaker cup: officially licensed marvel comic themes. Building off the tried-and-true design of the blenderbottle® classic™, the pro28™ adds customer-requested features and refinements to deliver a shaker that a cut above the rest. Featuring odor-resistant eastman tritan™ plastic, a rounded base for better mixing, and the new spoutguard™ for keeping dirty gym fingers at bay, the blenderbottle pro28 joins the pro series with style. 28-ounce capacity (note: measurements only go to 20 ounces) sleek and durable pro28 shaker cup for mixing protein shakes, smoothies, and supplements patented mixing system uses 316 surgical-grade stainless steel blenderball wire whisk found only in blenderbottle brand shaker cups screw-on lid creates leak-proof seal, and secure flip cap with spoutguard keeps germs at bay; wide loop top for easy carrying or attaching keys made of bpa and phthalate-free, stain and odor-resistant durable eastman tritan plastic; dishwasher safe; manufacturer limited lifetime warranty. Blenderbottle pro 28 marvel series protein shaker bottle - captain america 28oz