The RADIX 31 was designed knowing a little less weight can make your mountain mission a whole lot better. Crafted from lightweight Ultra-PE Birdseye and durable, recycled Robic Ripstop fabric, this pack takes the edge off those grueling ascents without sacrificing toughness. An array of adjustable features, like a removable frame, and plenty of external pockets helps you master the game of cubic inches. And the option of womens or mens harnessing provides a natural and comfortable fit.  Removable 7000 Series, aerospace aluminum frame offers just the right load-bearing support for what your mountain mission requires Removable and repairable compression web and repairable trim means that this pack wont be wearing out anytime soon Off-center zipper for more convenient accessibility Removable pocketed waistbelts keep your essentials close at hand on the trail Adjustable lightweight harnessing makes your hike that much more comfortableEasily compressible front and side pockets are pe