The Outdoor Products Grande 3 Liter Reservoir is perfect to keep you hydrated on your next adventure. It will hold 3 liters or 100 fluid ounces of water while on your outdoor activity. The bite valve has an on/off switch for extra leak protection and the flexible bite valve tip makes for a comfortable bite for large sips. The screw on design makes it easy and convenient to clean as needed. The water bladder has a removable hose so you can spend less time washing and more time adventuring. hand wash with mild detergent and let air dry. Always rinse before each use. To maintain that odorless taste pre rinse with lemon water and than regular water before using. Flat cap with tether allows for ease in filling with ice and water without losing the cap. This item is 100% BPA free and FDA approved. This 0.18 lb clear 3 liter bladder will fit all Outdoor Products, Timber hawk, and Fieldline Pro hydration compatible backpacks. It is suitable for use by a senior, adult, teen and kids.