With its dual-layer, textured-grid fabric, this training crew traps heat for unrivaled warmth with little added weight. ColdGear Infrared uses a soft, thermo-conductive inner coating to absorb and retain your own body heat. Moisture Transport System wicks sweat away from the body. Anti-odor technology prevents the growth of odor causing microbes. Dart shoulders for superior fit. Contrast cover stitching. Fitted fit. 100% ColdGear® polyester. Imported.