The Arc’teryx Atom SV hoody, previously known as the ‘Atom heavyweight hoody’, goes heavy where it counts — the warmest Atom in the line, built for cold‑bitten hikes and above‑treeline pushes. Thermo‑mapped Coreloft™ brings serious heat without the bulk for cold and windy days, while full‑length stretch side panels provide airflow and prevent overheating and humidity buildup when the pace spikes. Tyono™ 30 blocks the bite, resisting snagging, abrasion, and pilling, and the whole piece works solo or under a hardshell. Body: 100% Nylon Synthetic Insulation: Coreloft™ 100% Polyester Wind-resistant Tyono™ 30 Micro Ripstop Face Fabric Durable Water Repellent Finish Full Length Stretch Side Panels Hand Pockets & Internal Pocket Insulated, Helmet Compatible Storm Hood™ Stretch Knit Cuffs Moisture & Wind Resistant Style Code: X000009902-002291
