Snowy mountains and technical descents call for pants capable of withstanding years of abuse while providing absolute protection in severe weather. The Alpha SV Bib Pant CZ is exactly that: guaranteed bombproof, waterproof, breathable pants with tons of features specifically geared for those playing in the big peaks. The main body fabric is N80p-Gore-Tex Pro 3-layer, super tough nylon that lasts forever because the individual yarns are woven so tightly together they are not exposed to abrasion. This means that no matter how many bushes you skin through, trees you snag on, or rocks you squeeze by, your pants won't look like you stumbled through a sandpaper maze. In addition, Arc'teryx reinforced abrasion-prone areas with even burlier N155p-X Gore Tex Pro 3L fabric, using a technical Ottoman weave to increase ruggedness and durability. Bringing up the rear on the "tough train fabric tour" are the Keprotec instep patches, providing protection from ski or split-board edges as well as sharp crampon points.