Dual-layer EVO ColdGear® construction combines a smooth, fast-drying exterior with a brushed, heat-trapping interior ColdGear® Infrared uses a soft, thermo-conductive inner coating to absorb and retain your own body heat Signature Moisture Transport System wicks sweat to keep you dry and light Lightweight, 4-way stretch construction improves mobility and maintains shape Anti-microbial technology fights odors to keep your gear fresher, longer Ergonomic flatlock seams allow you to move free without fear of chafing Rolled forward side seams for a more comfortable fit Polyester/Elastane Imported