The Platypus Hoser 1 hydration system is a light, versatile hydration system that has become a backcountry classic. It has a simple, durable design that is practical for any activity. There's a Platypus Hoser to fit most any pack. Try the Hoser 1 in any fanny pack. Taste free and BPA free for clean drinking. PU PE food grade liner with rugged exterior is pliable and durable. Silver ion antimicrobial keeps it fresh. PU hydration hose 40 with lapel clip and silicone Hyperflow bite valve makes it easy to drink, on the go. Screw top closure stands up to rugged use. Capacity: 1 liter34 fl. oz. Wt. 3.2 oz. Size: 5.25x11.5. Made in USA.