The Platypus Big Zip EVO 3 L Reservoir is designed for hikers who prioritize staying hydrated efficiently on the go. This water reservoir features a 50 percent faster flow rate for improved hydration delivery and a SlideLock system for secure closure and easy one-handed filling. The high mount quick disconnect allows for swift hose removal and pack access, while the leak-proof shut-off valve ensures water flow stops instantly for secure storage. With its semi-rigid center baffle, cleaning and drying are a breeze. The HyFLO bite valve enhances flow with a larger drink tube, and the silver ion treatment inhibits mold and bacteria growth. Taste-free materials ensure your water remains fresh without odor transfer.