The Atom hoody is a mid-layer option from Arc'teryx that can also act as a stand-alone if required. This lightweight insulated hoody features a lightweight, durable construction that has warmed climbers and backcountry travellers for years. The face fabric is Tyono™ 20 denier with a DWR water repellent coating that's backed with a dope-dyed Permeair™ 20 liner. Insulation comes from Coreloft ™ synthetic down, which is far less temperamental than any natural counterpart whilst also being supremely light. To help with movement, key areas are constructed from stretch fleece panels. - Tyono™ 20 denier shell w/ FC0 DWR - 100% Nylon face fabric - Dope-dyed Permeair™ 20 liner, 100% nylon - Stretch fleece panels, 94% polyester, 6% elastane - Coreloft™ Compact (60 g/m² ) insulation - Stand collar - Insulated hood w/ cord adjustment - Full-zip construction - Discrete zippered side pockets - Elastic cuffs - Shock cord adjustable waist - SKU: X00000955601