The Marmot Men's Approach Jacket comes with ultra-breathable M3 Softshell fabric, which makes it an ideal pick for winter trekking, light-and-fast ascents, and other highly aerobic activities. When worn as an outer shell, the water-resistant exterior holds off snow or light rain, and when worn as an insulating layer under a hardshell, the Approach provides added warmth and protection from the elements. An overall stretchy feel provides plenty of mobility during technical and demanding ascents.