1.INNOVATIVE DESIGN With large openings for easy cleaning and filling, you can clean these containers by hand or with a brush, the on/off valve is easy to open and close, without leakage, the drinking water hose is removable, can be cleaned and replaced independently, and will not leak when removed. The container has a dust cover to keep debris out, and pipes long enough for easy drinking 2.HIGHER CAPACITY water bladder bag provides different sizes for you 1.5L/2L hydration bladder. It meets your different needs for outdoors, enough for a day of drinking hiking, cycling, climbing, running or cycling. The tube length is 100 cm, long enough to drink directly from the backpack. 3.EASY TO CLEAN Large opening for easy cleaning and filling. The water bladder for hiking backpack has one of the largest openings on the market. It ensures easy pouring of water, it is also quite wide for a hand or brush easy access to the interior. 4.PREMIUM QUALITY All parts of our hiking water bladder are made of high quality material. Does not leave bad taste in your drink. The smooth interior of the water reservoir promotes and is easy to clean. The water bladder has passed a pneumatic pressure test, it is pressure tolerant. The double sealing side technology has significantly improved durability.