When the mountains throw their worst at you, the Arc'teryx Alpha SV Jacket stands as your ultimate shield against nature's fury. Built for serious mountaineers and alpine climbers who venture into severe weather conditions, this legendary jacket combines bombproof N100d Most Rugged 3L GORE-TEX PRO fabric with intelligent design features that keep you moving when others turn back. The helmet-compatible StormHood provides complete protection during technical climbs, while pit zips let you dump heat fast when the ascent gets intense. With articulated patterning that moves with your body and a climbing harness-compatible design, the Alpha SV transforms brutal alpine conditions into just another day on the mountain. Plus, the integrated RECCO reflector adds a crucial safety layer for those remote adventures where help might be hard to find.