Large opening for easy cleaning : CHERAINTI 1.5L hydration bladder has one of the largest 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; CHERAINTI water reservoir won’t leave a plastic taste in your drink; the water bladder 1.5l passed pneumatic pressure test, it is pressure-tolerant; double sealing side technique has greatly improved durability hydration pack bladder

Remain pefectly: This hydration bladder 1.5L can withstand temperatures from 20 to 50 degrees celsius; the tube resists temperature changes in hot and cold weathers; L 14.1'' x W 6.6'' hydration bladder is compatible with almost hydration packs; the tube, 0.4” diameter and 40” long, provides a wholesome flow for easy drinking, keeping you hydrated when Camping, biking, cycling, hiking, or running

Well-sealing water bladder: You won't be slowed down with the high flow bite-valve; simply bite the mouthpiece to suck water; soft mouthpiece with easily accessible ON/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 connector automatically shut off and the hydration bladder will stay filled; store neatly in fridge/icebox without tangling hose

Leakproof & portable design: The hydration bladder features a reliable leakproof construction with secure sealing and strong connection points; CHERAINTI water bladder for hiking backpack without adding extra bulk, making it an companion for outdoor adventures