The men’s Alpine Start Jacket is an ultralight, immensely packable, and incredibly versatile protective shell, designed for a variety of backcountry and outdoors activities. It’s made of Schoeller stretch-woven softshell fabric, which is highly breathable and weather-resistant, tailored explicitly to the needs of alpinists and weight-conscious climbers. It features gusseted underarms improve mobility. This jacket also stows in its chest pocket, and a carabiner loop lets you clip it to your harness or pack in-route.