WHAT'sIT DO? Everyone knows us for our ColdGear® baselayers—super-light and ultra-warm. Now we've upped the ante with ColdGear® Infrared. It'san 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 FUNDAMENTALS. FITTED: 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 heat. Dual-layer fabric gives you a soft, warm interior and a smooth, fast-drying exterior. 4-Way Stretch fabrication allows greater mobility and maintains shape. Moisture Transport System wicks sweat away from the body. Quick-dry fabrication keeps you light and comfortable. Anti-Odor technology prevents the growth of odor causing microbes. Smooth, chafe-free flatlock seam construction. Tonal logo for uniform wear. Polyester/Elastane. Imported