MYNEKO Mens Fashional Short Sleeve Cycling Jersey Suit Polyester Imported The size is smaller than standard US size,so please refer to the size chart in the product description to select a suitable size. Material: 90% Polyester and 10% Lycra It can keep you dry and cool in the hot condition High quality tights fabric: light and decrease the wind You could mix the size of short and jersey,and make them a set,please email us the size info when you mix the size.