A heat-trapping, fast-wicking fabric and 3/4-length legs make the Patagonia Men's Capilene Thermal Weight Boot-Length a perfect choice for all your skiing and snowboarding sessions. The Polartec Power Grid fabric features a lofted grid pattern on the inside that traps heat and wicks sweat so you stay dry and warm, and spandex helps it move with you under layers for unrestricted mobility while you're skiing, riding, or skinning. The slim fit maximizes the fabric's efficiency, and the 3/4-length keeps the baselayer from interfering with your boots and socks.