It has no pressure points thanks to the innovative Boa closure system that guarantees precision, durability and comfort. The closure system consists of two micro adjustable Boa reels and stainless steel cable. The combination of these elements allows the cyclist to obtain a uniform fastening and greater air circulation on the front of the foot. The Boa technology guarantees the bobbins and cables of the BOA locking system for the entire life of the product. Breathability: the upper is made of microfibre with laser perforation. Together with the new anatomical tongue, the shoe offers excellent breathability and a perfect climate for the cyclist. The Michelin Carbon Rubber Technology combines rubber and carbon in an unique and exclusive process, enhancing their particular characteristics and technical performance such as stiffness and lightness (carbon) and grip (rubber) in a single element.