【MILITARY GRADE QUALITY】Hydration bladder is made of premium anti-bacteria material. Taste free, non-toxic, BPA free and FDA approved. It won' t leave a bad taste in your drink. The water reservoir bladder passed pneumatic pressure test, it is completely pressure-tolerant. Double sealing side technique has greatly improved durability

【100% LEAKPROOF】Upgraded soft mouthpiece with easily accessible ON/OFF valve prevents leakage. Conveniently control the water flow by biting, when not bite, the water will not leak out. Quick-release tube is detachable. Auto shut off while the tube is removed, the 2 liter water reservoir will stay filled non-leaking

【EASY TO DRINK】You won't be slowed down with our high flow bite-valve. Simply bite the mouthpiece to suck water. Pull to drink and push back to lock. It also has a dust proof cover to keep it clean. It conveniently quick and easy to have a drink in hiking, biking, cycling, climbing, backpacking, hunting, running, camping, and all outdoor sports

【REMAIN PEFECTLY HYDRATED】This hydration pack bladder can withstand temperatures from -20 to 50 degrees celsius. The tube resists temperature changes in hot and cold weathers. L 13.8'' x W 6.8'' water bladder is compatible with most hydration packs. The tube (0.4'' diameter, 36'' long) provides a wholesome flow for easy drinking, keeping you hydrated

【YOU' LL ABSOLUTELY LOVE THIS】If there is a leak, or bad taste, or any other reason why you' re not 100% happy with this hydration pack replacement, simply send it back for a full refund or to get a new replacement. No questions asked!