Features Developed by the CRONO Research and development office, Includes the Boa® IP1-S double way closure with nylon coated steel lace, applied with the innovative MULTI CONTACT system, which adapts to most foot shapes, ensuring the perfect heel position. Made of high quality and light weight microfiber, even more breathable by the laser made openings; the heel grip is enhanced by the application of no-slip lining and the insertion of a special reinforcement. Equipped with the new FULL CARBON sole with scale value of 10+ downturn.