Diadora Cyclogym Spin Cycle Shoes are perfect for your spin class. FITTING: Ergonomic Fit. INSOLE: fixed, E.V.A. lined. UPPER: in ultra-breathable, reinforced Air Mesh for a great close fitting. Modern and sportive look. CLOSURE: 2 opposite velcro closures to avoid rubbing on the pedal crank and to hold the foot perfectly. Adjust heel closure.