With it’s carbon fiber X-frame suspension, tough molded E-Vap back, rugged haul loops, crampon pocket and tons of other awesome features this may be our favorite pack from North Face right now. Professional hikers and climbers not only talk about this pack, they rave about it. And we can see why, after a fitting with weight, and gear we found this to be the most comfy pack out of the 5 or 6 in it’s class we tried on that day. Very Cool. NC