West Biking Mens Breathable Running Tops Sport Short Sleeve Cycle Racing Cycling Jersey (Black Blue Red Green White) polyester * Shirt: Material: 80% POLYESTER, 20% SPANDEX; * Very light & thin to reduce weight-bearing; * Breathable fabric wicks quickly away moisture and keep you dry; * The jersey provides a slightly looser, more comfortable fit; * Longer shaped back to suit cyclist riding position;