The enclosing, minimally overlapping upper shoe made from a similar synthetic leather and upper material pattern as the XC7/XC9 provides a precise fit. Integrated seamless midsole and upper construction for 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. BOA® L6 rotary closure with textile strap over the instep for quick and comfortable adjustment to various foot shapes. Toe cap and midsole made from recycled materials. Fiberglass-reinforced nylon midsole for good power transfer. Flat midsole stabilizes the foot and ensures maximum power transfer.