When warmth is your priority, zip up the Atom SV Hoody. Made for frigid hikes and above-the-treeline adventures, its synthetic insulation and StormHooda" seal in heat for consistent comfort in cold, damp, and windy conditions. Strategically placed for max breathability, full-length side panels provide a welcome flow of air on that final summit stretch. The workhorse in your winter kit, it delivers hefty protection on its own and rides comfortably under a hardshell when the sky opens up. What's been updated: Updated with a more streamlined fit and a FC0 DWR (Durable Water Repellent) finish thata (TM)s free from intentionally added PFAS. Improved male-specific thermal patterning on the side panels maximizes breathability and reduces overheating. Fit & Design: Adjustable hood provides custom protection Adjustable hem draw cord seals out drafts Breathable Corelofta" synthetic insulation keeps you warm even when it's wet Thermo-mapped for optimal performance Full-length stretch side panels with Corelofta" insulation prevent overheating and humidity buildup Insulated, helmet compatible StormHooda" Warmest Atom Hoody performs as a cold-weather midlayer or standalone across a range of activities Technology: Wind-resistant Tyonoa" 30 micro ripstop face fabric resists snagging, abrasion, and pilling,Recycled nylon ripstop lining resists internal abrasion