Enjoy hands-free hydration no matter what activity you are doing! OGIO Hydration hydration bladders are the ideal item when a hydration pack needs a replacement. Volume markings on the front, so you can mix your favorite drink or electrolyte inside. Focus on your physical fun, & don t burden yourself with carrying a clunky water bottle. Choose OGIO s hydration bladders to meet your needs. Features Recommended use: Motorcycle, Outdoor Large slide-lock opening, for filling ice cubes & easy cleaning after use BPA-free polyurethane film, protected by Microban® antimicrobial technology OGIO Hydration Reservoir uses radio frequency welded seam technology at seams & outlet opening to ensure a strong leak-proof connection Angled easy-flow bite valve provides a constant flow rate TPU tubing is odorless & tasteless Capacity markings on the front make it easy to mix electrolytes or your favorite beverage Capacities available 32 oz (1.0 L) 70 oz (2.0 L) 100 oz (3.0 L)