The Primavera covers are made for spring and autumn, where it just needs to take some wind so that your feet are not cooled down on the trip. So it is a very thin cover that fits right into the shoe. They are very elastic in the calf, so they sit close together and stay aerodynamic. At the same time, they are easy to wash and keep your shoes clean longer. A hole has been made for the cleats in the forefoot, and the covers can be used with all cleats. The cover is one size to fit all shoes.