The Arc'teryx Atom SL Hoody is one of the most practical (and packable) pieces you can own. Wear it solo for trail running or pair it with a waterproof jacket for added warmth and weather protection on cold, wet mountain adventures. It is breathable, weather-resistant and has elastic insulation on the upper body, but not in the sleeves. This maximizes packability and warms the upper body.

- Body-hugging fit with anatomically pre-shaped cut for mobility and comfort
- Adjustable, flat, non-insulated StormHood hood
- Adjustable drawcord in the hem keeps drafts out
- Two zippered hand pockets