BOA® L6 rotary closure at the tension for quick and comfortable fixation of various foot shapes. Integrated seamless midsole and upper construction for an unparalleled fit, stability, and lightness. The ULTREAD XC rubber outsole with a technical racing profile offers the ultimate combination of low weight, high traction, reliable stability, and lasting pedal grip. The upper shoe, covered with mesh/TPU and synthetic leather in an optimal layout, ensures a comfortable fit and low weight. The enclosing, minimally overlapping upper provides a precise fit. Carbon fiber-reinforced nylon midsole for good power transfer. Flat midsole stabilizes the foot and ensures maximum power transfer.