It's hard to recover completely at basecamp when the frigid temperatures keep your legs shaking, unless you brought the Western Mountaineering Men's Flash Down Pant with you. With 850+ fill goose down insulation warming your lower body, you get the utmost recovery possible for the remaining ascent. And there's really no reason to leave it at home, because this pant weighs less than half a pound and compresses down to half the size of your water bottle. The Flash features an adjustable belt that cinches across your waist comfortably, and the elastic ankle cuffs keep the pant in place and seal out that freezing air. Western Mountaineering reinforced the seat so you can sit on your ass as long as you need until your restful recovery is complete.