Arcteryx says about the Alpha Jacket Women's
N40d GORE-TEX Pro 2.0 with Most Rugged Technology provides exceptionally durable, waterproof, windproof, breathable protection at the shoulders, outside sleeve, and hood | 3L GORE-TEX with Hadron™ face fabric on the body and under the arms provides weather protection for less weight and increased breathability | Proprietary Hadron™ LCP (Liquid Crystal Polymer) grid face fabric is incredibly light and exceptionally durable DWR (Durable Water Repellant) finish repels moisture | Helmet-compatible StormHood™ adjusts to move with your head and provide coverage without impacting peripheral vision | Pit zippers provide rapid ventilation | Two harness-accessible chest pockets, single internal zippered pocket secure essentials | Glove-friendly Velcro cuff adjusters seal out drafts | Regular fit with articulated patterning provides mobility and comfort, and allows room for layers | Embedded RECCO® reflector can aid search and rescue in emergency situations