MYNEKO Mens Pro Team Style Short Sleeve Cycling Jersey Suit Jersey and Bib Shorts 100% 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.The jersey set is tight,need to loose and big,please select one size larger. 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.