The Thermolator Pant is the ideal piece for all day warmth and comfort while being out in the elements. These versatile thermal long johns feature an ultra-soft, mid-weight fabric utilizing our features 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, Thermolator is functional performance at its best! The Thermolator Pant goes perfectly with the Men’s Thermolator Crew and other pieces from the Thermolator collection.