Big Zip Evo Shut Off Valve Category_Shop/Equipment The proprietary foams are softer

The proprietary foams are softer on top for extra comfort and denser on the bottom for extra durability

Compatible with all Platypus shutoff valves and 1/4" tubing

Fend off frozen drink tubes and help keep liquids cool in hot weather with the Drink Tube Insulator

even in cold weather or low fuel

Hygiene On-the-Go: Keeps your hydration system fresh and ready for adventure

Big Zip Evo Shut Off Valve Category_Shop/Equipment The proprietary foams are softerThe Big Zip EVO Shutoff Valve is a new leak proof valve made specifically for the Big Zip EVO Reservoir. The improved design offers a wider angle for faster water flow, an embossed water droplet icon to indicate when water flow is engaged (taking away any guesswork on whether or not water is in on or off mode), and a larger on off lever for ease of use (even with gloves on). The result is a valve that offers faster water flow and a more intuitive on