The medium-weight fabric has a unique hexagon-shaped pattern, trapping a large amount of heat, but still breathable. 4-Way Stretch technology allows for better movement in every direction. The material wicks away sweat and dries very quickly. Waterproof woven overlays for added durability and protection from the elements. Folded cuffs with built-in thumb holes. Secure zippered pocket on the underside. Reflective details for running in low light.