Arc'teryx Atom Hoody Jacket 2027 – Mid Layer

The Arc'teryx Atom Hoody is a synthetic insulated mid-layer built for athletes who need reliable warmth across a wide range of conditions — from breezy trail runs and crag days to winter ski touring. It works equally well as a standalone piece or layered under a shell, making it one of the most versatile pieces in any active outdoor wardrobe.

At its core is Coreloft Compact 60 insulation, a breathable synthetic fill that retains warmth even when damp — a meaningful edge over down on high-output or unpredictable days. The fitted, articulated cut moves with you rather than against you, while stretch-knit side panels add ventilation where you generate the most heat. The Tyono 20 shell is light, air-permeable, and treated with a PFAS-free DWR finish, and the insulated StormHood with its structured mini brim keeps your head covered without bulk. Two zippered hand pockets, an internal chest pocket, and glove-friendly TPU zipper pulls round out a thoughtful feature set.

The Atom Hoody is ideal for skiers, climbers, and hikers who move fast and encounter variable weather. If you sweat hard and need insulation that breathes and recovers when wet, synthetic fill outperforms down in your conditions. It's also a strong pick for anyone who wants one piece that handles both active exertion and stationary breaks without a wardrobe swap.

• Will it keep me warm in heavy snow or rain? The DWR-treated shell and moisture-resistant Coreloft insulation handle light precipitation well, but the Atom Hoody is designed for active use and variable conditions — not sustained downpours. Pair with a waterproof shell in serious rain.
• Can I pack it into my bag easily? Yes — the Atom Hoody is compressible and packable, so it stows efficiently in a pack pocket or stuff sack when you don't need it.