These multi-purpose base layer pants were built for cold weather. Their thermo-regulating insulation provides heat retention to keep you warm and comfortable without overheating. Odor control technology helps neutralize bacteria and moisture management technology keeps you dry. The built-in comfort stretch provides superior softness and ease and allows for a full range of motion. Designed at DXL in proper proportions for the Big and Tall guy, they're crafted with active stretch for ease of movement and range of motion whether you're out skiing the slopes, hiking the mountains or watching the game live at the stadium.