Click on the Size Guide button on the right before ordering to ensure that you order your correct size Classic 1/2 zip cycling jersey cut with a scooped rear hem, complete with a 3-compartment pocket. Lightweight & quick drying, the polyester style features both a special anti-bacterial. finish & mesh ventilation zones to help keep you feeling fresh. Reflective details enhance visibility, whether you are riding on city roads or in the great outdoors. Polyester (100%)