Prepare to eat powder for breakfast, lunch, and dinner in the Arc'teryx Women's Airah Jacket. Underneath the waterproof Gore-Tex shell, famous for its high-performance breathability, lies the key to this jacket's powder munching abilities. Polartec Alpha insulation, originally developed for the U. S. Special Forces, helps regulate body temperature during both energized and inactive activities by supporting rapid moisture evaporation and heat retention. This noteworthy combination of breathability helps eliminate layering and, coincidentally, the excess weight that was holding you back from going for one more run. And to top it all off, the Airah is equipped with a full set of backcountry-essential features including a helmet-compatible hood, underarm zips, and a snap closure powder skirt.