Redefining fit feel and power to weight performance the prolight slx are the lightest most powerful pro level road shoes giro has ever created teijin microfiber upper conforms to your foot like a second skin for effective energy output ultralight footbed plus a supernatural fit kit footbed with adjustable arch support enhances comfort efficiency and allows for a truly custom fit easton ec90 slx high modulus carbon outsole with a 65mm profile is extremely light and delivers best in class stif