The Rab Infinity Alpine Down Jacket excels on alpine style, high energy ascents in winter weather. The Infinity Alpine uses two weights of GORE-TEX INFINIUM™ WINDSTOPPER®. The outer is reinforced on the shoulders, upper body, and outer arms for better protection in rugged terrain. Highly breathable, windproof and water resistant with a soft feel, this jacket is perfect for winter climbing and mountaineering. Infinity Alpine Down Jacket - Men's