National Geographic Adventure Dec07/Jan08 Exum Jacket

Equally worthy of an Appalachian Trail thru-hike or a summit bid on Denali, the waterproof/breathable Marmot Exum jacket is the most comfortable mountaineering shell you can buy. Built with a hyper-functional, helmet-friendly, windproof hood and massive armpit vents, the Exum incorporates the new Gore-Tex Pro Shell, the softest and most durable Gore lining to date.