A close fitting lycra overshoe to aid aerodynamics. A perfect addition if you’re trying to save every second possible by improving the airflow & lowering drag over your shoes. The construction of the Endura FS260-Pro Lycra overshoes is both aerodynamic of speed & breathable for comfort so there really isn’t any compromise in use. There are holes built in for the cleats & heel which improves the fit & longevity. Reflective taping is across he overshoes to help with visibility in low light conditions.