360º enclosing upper shoe with an excellent fit for all riders. Heel cap with anti-twist protection for optimal foot positioning during strong acceleration and high cadence. Function-specific zones and scientifically optimized upper shoe materials for outstanding fit and pedaling performance. Two flat BOA® Li2 screw caps for quick and precise fine adjustment. Integrated seamless midsole and upper shoe construction for incomparable fit, stability, and lightness. Adjustable Powerzone wire guide for reliable support in the forefoot area.