Arcteryx says about the Atom Heavyweight Hoody Women's
Always warm, breathable and wind resistant, worn as a midlayer or standalone – the Atom Heavyweight Hoody is one of our 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.Updated with a revised fit.The Atom Heavyweight Hoody was previously the Atom AR Hoody.
Size and Fit Tips: Regular Fit - Our classic fit is cut comfortably throughout the chest, waist, hip, and thigh. It allows freedom of movement, provides shape, and layers comfortably over our first layers. This model's fit has evolved. Before you check out, please make sure to reference our sizing chart to determine your correct size.