The Mountain Equipment Men's Xeros Jacket is a down insulator that packs small so you can pack it up to the alpine and wear it on cold climbs. Gore-Tex Infinium gives reliable weather protection that packs small, breathes well, and weighs less. Its down insulation is some of the loftiest and most packable in the business, resulting in surprisingly toasty warmth that doesn't weigh you down. There are plenty of adjustments to batten down the hatches on windy, frigid belays.
