The Extreme Cold Weather Clothing System, or Gen-III ECWCS is a protective cold weather clothing system created originally by the United States Army Natick Soldier Research, Development and Engineering Center. This system consisted of a parka and trousers plus 20 other individual clothing, headwear and footwear items which are used in various combinations to meet the cold weather environmental requirements of the US military. Tru-Spec’s baselayer level garments are based off these designs to give Tru-Spec garments the same quality and utility as the base layers of this system. The Level-2 garments provide light insulation in mild cold and an additional layer of protection in frigid conditions. The grid fleece pattern on the inside is designed for maximum breath-ability and improved moisture wicking properties.