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.