Mavic Men's Pro Road Cycling Shoes Extremely are pro-level race-ready shoes that are comfortable, good fitting, stiff, and well-ventilated. With an Energy Full Carbon outsole, the Pro Road Shoes are extremely lightweight and thin (5.5mm) and use a low stack height to give you optimal power transfer. The synthetic and mesh upper is durable, breathable and easy to clean and Agion treatment reduces bacteria and odors. With the Ergo Strap Custom, you can customize the main strap length based on your individual foot shape and preference.