Arc'teryx Women's Atom Ar Hoody Jersey,Nylon,Polyester,Polyurethane Imported Zipper closure Machine Wash ATOM AR HOODY - Significantly warmer and more protective than a fleece jacket, this insulated hoody is breathable enough to be used as a warm mid-layer on cold wet days and protective enough to be an outer layer while belaying or hanging out at camp. ALL ROUND - High performance weather protection and materials, emphasizing versatility for multiple activities. ARC'TERYX ESSENTIALS - Versatile high performance designs for diverse activities and conditions. ATOM - Versatile synthetic insulated mid layers with a high degree of weather resistance. SYNTHETIC INSULATION - Man-made insulation with quick dry times, durability and retains warmth when damp.