Details Always warm, breathable and wind resistant, worn as a midlayer or standalone, the Arc'teryx Atom Heavyweight Hoody Women's jacket is one of Arc'teryx's most versatile insulation pieces. Its Coreloft™ synthetic insulation is efficient, effective and resilient. Mapped for optimal performance, it works well even if wet. The lightweight, wind resistant and water repellant Tyono™ 30 shell is treated for extra durability, and Permeair™ panels under the arms add ventilation. The insulated, helmet compatible hood adds warmth and protection. Material Insulation: Coreloft™ 120, Coreloft™ 60, and Coreloft™ 80. Made with highly crimped multi-denier siliconized polyester yarn, this lightweight, breathable, and thermally efficient, 100% polyester staple fibre is very compressible and has excellent loft retention. Shell: Tyono™ 30 denier with DWR treatment - 100% nylon Liner: Dope Permeair™ 20 - 100% nylon Fit Regular fit This classic fit is cut comfortably throughout the chest, waist, hip, and thigh. It allows freedom of movement, provides shape, and layers comfortably over first layers. Cuff construction increases durability, eases layering and removal Stretch-woven cuffs Drop back hem Adjustable hem drawcord Details Updated with a revised fit, the Atom Heavyweight Hoody was previously the Atom AR Hoody Compressible and packable Insulated helmet compatible StormHood™ with structured mini hood brim Contains materials that meet the bluesign® criteria Certified highest-in-industry safety rating for materials and construction to minimize health and environmental impacts. Dope dyed lining fabric Adding pigment at the polymer level which saves water, reduces C02 emissions and increases fabric colorfastness. Two hand pockets with hidden zippers Internal chest pocket with zip No Slip Zip™ front zipper Corded zipper-pulls reduce noise and are easy to grab Specs Waterproofing DWR (Durable Water Repellent) finish repels moisture Moisture-resistant outer face fabric Breathability Light, durable and wind resistant Tyono™ 30 has a dura coating for increased longevity Permeair™ 20 underarm improves breathability Insulation Resilient Coreloft™ synthetic insulation is mapped for optimal thermal performance Coreloft™ 120 (120g/m²) Coreloft™ 60 (60 g/m²) Coreloft™ 80 (80 g/m²) Weight Lightweight 395g / 13.9 oz Arc'teryx Atom Heavyweight Hoody Women's