When the mountain is hitting you with everything it’s got, this is the jacket you need. The most equipped and protective jacket in the Arc’teryx line, the Alpha SV Jacket offers maximum durability and weatherproofing for sustained stints in the alpine. It’s built with a burly GORE-TEX Pro fabric that shields against the wettest weather and withstands abrasion from rugged rock. Climbing-friendly features like harness-accessible pockets and a helmet-compatible hood keep it ready for serious alpine assaults, and zippered underarm vents let you blow off steam after a long push uphill.