Atom SV Hoody Men's is a warmest, thermo-mapped insulated jacket designed for hiking and trail activities, built as a warm, thermo-mapped layer that seals in heat for cold, damp, and windy conditions. Product Type: Men’s insulated jacket Material: Synthetic Fill StormHood™ helps seal in warmth during frigid, above-the-treeline efforts. Full-length side panels are strategically placed to maximise breathability on climbs. Updated with a more streamlined fit and an FC0 DWR finish free from intentionally added PFAS. For cold-weather hiking, layer it with a men’s shell jacket and pair with men’s hiking pants . When warmth is your priority, zip up the Atom SV Hoody. Made for frigid hikes and above-the-treeline adventures, its synthetic insulation and StormHood™ 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 that’s free from intentionally added PFAS. Improved male-specific thermal patterning on the side panels maximizes breathability and reduces overheating. Need a lighter option? Try the Atom Hoody.