The ColdPruf Men's Fleece Performance Thermal Pants are constructed with a 5 oz. 100% ColdPruf Technical Performance polyester fleece with Silvadur Intelligent Freshness that provides excellent warmth and long-lasting odor control on the fabric. The men's thermal pants have outstanding moisture management properties, making it ideal when used as a primary base layer for stop and go activities like alpine skiing and winter hiking. These thermal pants also provide excellent insulation when used as a mid-layer during static activities in cold weather such as hunting, ice fishing or working around camp.