The SIXS Underwear Long Sleeve 4 Season Carbon by Sixs is designed to provide unparalleled comfort and performance for all your outdoor and offroad activities. This high-performance base layer is made from advanced carbon fiber materials that offer perfect body thermoregulation, ensuring you stay warm in cold conditions and cool in hot environments. The fabric is anti-static to prevent clinging, and its nearly seamless construction ensures maximum comfort without irritation. The antibacterial fibers help to prevent odors, keeping you fresh even during the most intense activities. Additionally, the moisture-wicking properties of this shirt keep you dry by quickly moving sweat away from your skin. For added protection, the fabric offers a UV protection factor of 50, making it ideal for prolonged exposure to sunlight.