Blenderbottle® Pro 28™ Marvel Pro Series Protein Shaker Bottle - Thor 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 Pro Series Protein Shaker Bottle - Thor - 28Oz