Big Zip EVO ShutOff Valve Color:Blue Performance boxer briefs made with

Performance boxer briefs made with moisture-wicking recycled nylon/spandex stretch micromesh fabric for high-output activities and travel

Whether on hard or soft surfaces: the carbide tip or rubber tip offer you grip and safety on any terrain

Add to that premium Italian spring hinges

This English translation of the Petzl Foundation’s Alpine Skills: Summer handbook

and further stabilizes packs and harnesses

Big Zip EVO ShutOff Valve Color:Blue Performance boxer briefs made withThe 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