The new black and red SCOTT bicycle short-sleeved jersey suits / perspiration breathable bike clothing Please see our upload size chart reference,and according it choose the correct size,then send the email tell me your size information when you order,thank you. cycling jersey is made of 100% polyester keep you comfortable while riding in hot whether. with quick dry moisture and breathable function. These cycling wear with high tech fabric breaths to keep you dryer by wicking sweat away from your ski COOLMAX: Quick-Dry Function and Make you Feel More Comfortable technic: all the bikes wear is full dry sublimation printing or computer printing.