Double-knit fabric is soft, stretchy and warm for excellent comfort and mobility. The material wicks away sweat and dries very quickly. 4-Way Stretch technology allows for better movement in every direction. Hood for added warmth and protection from the elements. UPF 50+ protects the skin from the sun's harmful rays. Secure zippered pocket on the left side for energy gels or small essentials. Built-in thumbholes help keep the sleeves in place. Odor control technology minimizes odor.