The men's Patagonia Capilene Lightweight Bottoms are a baselayer for skiing and cold-weather activity. The lightweight stretch fabric wicks moisture during high-output efforts, and the fitted cut layers smoothly without compression. Low-bulk seams and a gusseted crotch help prevent chafing and let you move freely, and the perforated waistband dries quickly. They're made from 100% recycled polyester in a Fair Trade Certified factory.