Steeped in the alpine, the versatile Womens Atom LT Hoody from Arcteryx has warmed climbers, hikers, backcountry skiers and downtown commuters time after time. Worn as a midlayer or standalone, it performs across a range of conditions and output levels. Coreloft Compact insulation retains warmth even if wet and has loft retention that withstands years of packing and unpacking. The water resistant Tyono 20 face fabric is soft, breathable and durable, stretch side panels improve ventilation and freedom, and the insulated StormHood adds warmth.