Pay attention to the locking system. It ensures that the shoe firmly surrounds the entire foot, even under the greatest strain that occurs during the pulling phase of cycling, and provides the necessary support. Buckles and Velcro must not press under any circumstances. With twist fasteners, it is necessary for the deflection points to be correctly positioned in order to guarantee optimum stability. Make sure that the upper material of the shoe does not wrinkle when closing, as this could lead to pressure points on the foot. If wrinkles appear in the upper material when the shoe is closed, this is often a sign that the cycling shoe does not fit optimally.