The Terramar Men's Thermolater 2.0 Base Layer Pant is the ideal piece for all-day warmth and comfort while out in the elements. This versatile Terramar base layer features an ultra-soft, midweight fabric utilizing Climasense Thermoregulation Technology that automatically adjusts to your body temperature. It does this by trapping air to maintain warmth when your body starts to cool down. When your aerobic activity increases and your skin temperature rises, the fabric allows moisture vapor to escape to maintain comfort. Whether skiing, mountaineering, biking, snowshoeing, winter running or just enjoying the outdoors during the winter, Terramar men's Thermolator pants deliver functional performance at its best.