The Arc'teryx Atom SL Hoody for women lighter than the original Atom Hoody, and is one of the most useful (and packable) pieces you can own. Wear it as a standalone layer when trail runs take you through cold, wet weather or layer it with a waterproof shell when mountain pursuits demand additional warmth. Made from strong recycled Fortius™ Air 20 fabric with a FC0 Durable Water Repellent finish, the hoody provides an optimal balance of air permeability and weather resistance. It has breathable and weather-resistant stretch insulation in the body but not the sleeves or hood — maximizing packability while still delivering focused warmth to your core. Side panels made of lightweight stretch Octa® Fleece provide freedom of movement and improve ventilation

This hoody features a fitted design with articulated patterning for enhanced mobility and comfort. The adjustable low-profile uninsulated stormhood provides protection, while the adjustable hem drawcord seals out drafts. To keep your belongings safe, there are two zippered hand pockets. The uninsulated, mesh-lined sleeves offer light protection and regulate temperature.