Arc'teryx Womens Atom Jacket

The Atom Jacket is your go to essential for any outdoor adventure, designed to deliver dependable, breathable warmth during cold alpine starts, high-altitude treks, and sudden summit storms. Crafted with premium lightweight Coreloft insulation, it provides long-lasting loft and performance that won’t compress or lose shape, even after years of rugged use. Strategic stretch-fleece side panels enhance mobility, improve ventilation, and help regulate body temperature, ensuring comfort across varying activity levels. Whether you’re hiking, climbing, or backcountry skiing, this versatile midlayer offers exceptional heat retention while allowing excess warmth to escape when needed. Built to layer seamlessly under a hardshell jacket, the Atom keeps you warm even when damp making it an indispensable piece for unpredictable mountain weather and year-round outdoor performance.