Arc'teryx Atom SL

The Arc'teryx Atom SL Jacket is an ultralight synthetic-insulated midlayer built for active mountain pursuits. Coreloft™ insulation through the body provides lightweight warmth, while uninsulated sleeves and Octa® fleece side panels improve ventilation and freedom of movement during high-output activity.

Its Fortius™ Air 20 outer fabric resists abrasion and wind, with a DWR finish that helps repel light moisture. Highly packable and designed to regulate temperature within a layering system, it suits men who want efficient warmth for ski touring, light off-piste travel and changing mountain conditions.