Cascade Designs Platypus Big Zip SL Hydration System

The Big Zip SL Hydration System by Platypus is now more durable than ever and loaded with improved features - like the new easy-to-clean wide-mouth SlideLock closure with secondary reinforcement so you know it’s sealed securely - and a quick-disconnect valve for removing thereservoir from a pack without re-routing the hose. Other upgrades include a redesigned - easy-to-use shutoff valve and a softer - more flexible - but still taste-free reservoir.