Everyone knows us for our ColdGear baselayers¿super-light and ultra-warm. Now we¿ve upped the ante with ColdGear Infrared. It¿s an exclusive print technology that actually holds body heat. Bottom line: you get the same weight and feel as your favorite baselayer but it warms up faster and stays that way longer.THE FUNDAMENTALSFITTED: Sits close to the skin for a streamlined fit without the squeeze of compression.WARNING! This product will melt when exposed to extreme heat or open flames posing a risk of serious injury where melted product comes into contact with skin!ColdGear Infrared uses a soft thermo-conductive inner coating to absorb and retain your own body heatDual-layer fabric gives you a soft warm interior and a smooth fast-drying exterior4-Way Stretch fabrication allows greater mobility and maintains shapeMoisture Transport System wicks sweat away from the bodyQuick-dry fabrication keeps you light and comfortableAnti-Odor technology prevents the growth of odor causing microbesSmooth chafe-free flatlock seam constructionTonal logoPolyester/ElastaneImported