OPENING FOR EASY CLEANING - 2l hydration bladder has one of opening, and the big opening makes for easy pouring of water. It is also fairly wide for a hand or bottle brush easily access to the interior water bladder for hiking backpack. The screw on cap goes on and off easily. For cold water, simply add ice-cubes directly from a scoop or refrigerator ice dispenser. The smooth inner of water reservoir promotes health and is easy to clean. PREMIUM QUALITY - The whole hydration bladder is made of premium material. our water reservoir is taste free, food grade. This tested to comply with safety standards. It 't leave a in your drink. The water bladder 2l passed pneumatic pressure test, it is pressure-tolerant. Double sealing side technique has greatly improved durability hydration pack bladder. REMAIN PEFECTLY HYDRATED - This hydration bladder 2L can withstand temperatures from 20 to 50 degrees Celsius. The tube resists temperature changes in hot and cold weathers. L 14.2Inch x W 6.8Inch water bladder is compatible with most hydration pack. The tube, 0.4Inch diameter and 40Inch long, provides a wholesome flow for easy drinking, keeping you hydrated when Camping, biking, cycling, hiking, or running! WELL-SEALING WATER BLADDER - You 't be slowed down with our high flow bite-valve. Simply bite the mouthpiece to suck water. Soft mouthpiece with easily accessible ON or OFF valve. It also has a cover to keep dirt out. Conveniently control the water flow by biting. Quick-release tube is detachable. While the tube is removed, the connnector automatically shut off and the hydration bladder will stay filled. Store neatly in fridge or icebox without tangling hose. Capacity:2L Colour:Green Material:EVA Package Contents: 1 x water bladder Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.