Lightweight and breathable microfibre leather offers an optimum fit and first-class comfort for the entire ride First-class heel counter with anti-twist protection for optimum foot positioning under heavy acceleration Two flat BOA Li2 twist locks for quick and precise fine adjustmentTwo flat BOA Li2 twist locks for quick and precise fine adjustment Slim, flat cross lacing ensures elegant fixation of the forefoot Integrated, seamless midsole and upper construction for unrivalled fit, stability and lightness.