Rodeo SS Jersey Saves Approx. 12 watts at 40 km/h compared to a normal race-fit jersey Velocity dimpled fabric on front & shoulders for enhanced wicking & faster drying Full-length YKK Vislon zipper with neck protector Nervato fabric at armholes for enhanced aerodynamics Silicone gripper elastic at waist Mesh raw-edge arm grippers Zippered rear pocket Reflective heat-transfer viz strips Castelli Size Guide