Want to keep drinking when you are Hiking Biking Climbing Cycling Running?There is no doubt that our water reservoir is your best choice. Why You Need a Water Bladder? ? Premium material, BPA free.food grade. ? Easily accessible ON/OFF valve prevents leakage. ? Effortless sipping and wholesome flow with soft and durable mouthpiece. ? High-flow bite valve with dust cover. ? Detachable drinking tube for better cleaning, drying and storage. ? Insulated tube resists temperature changes in hot and cold weathers. ? Auto-shutoff valve prevents leaking when the tube is detached. ? Taste free?won’t leave a bad flavor in your drink. ? Smooth Inner surface makes water bladder clean and safe for use. ? Wide opening for easy filling, cleaning, draining, and ice insertion. ? Double soldering sealing side improves durability. ? Pressure tolerant and does not wear out from active outdoor uses. ? Perfect size and capacity for most hydration backpacks. Product details: Dimensions: 2 liter(16.2 x 6.7 inches) Weight: 7 ounces Capacity : 2L Hose Length: 40 inches Opening diameter: 3.54 inches Hanging notches: 1 x 0.2 inches Suction nozzle: Silicone gel Care tips: 1.Hydration Bladder can not be loaded beverage, wine, milk and so on. 2.Can withstand the water temperature range: -20 to 50 degree Celsius. 3.Keep the bladder away from sharp objects to avoid puncture.