Premium taste-free, feature-rich reservoir with high flow rate. As the newest evolution in taste-free hydration, the Big Zip EVO delivers a significant 50 % increase in flow rate from our previous BigZip LP, making it a great option for backpackers, hikers, and mountain bikers. A host of updates and new features contribute to this next evolution in easy hydration.
Tasteless, BPA-, BPS- and phthalate-free
Semi-rigid partition wall keeps the bag open for faster drying
Incorporated silver ions protect the drinking water against mould and bacteria
Highly attached quick-release fastener on the hose facilitates quick filling and emptying
Leak-proof closing valve and 8 mm hose diameter contribute to a faster flow rate