From fast dawn patrol laps to technical ski mountaineering adventures, the Rab Men's Khroma Kinetic Jacket is in a league of its own. Rab's own Proflex fabric, which boasts the waterproofness of a hardshell yet is as stretchy and breathable as a softshell, makes this piece a standout. Throw in a generous ventilation system, ski-helmet-compatible hood, and a fit that seamlessly accommodates layers, and you've got a do-it-all shell for human-powered mountain missions. Rab updated this best-seller with an articulated fit and ventilation zips for greater ventilation and better mobility up and down the mountain.