BOA® L6 rotary closure at the tension for quick and comfortable fixation of various foot shapes Encapsulating, minimally overlapping upper shoe provides a snug fit Upper shoe made with mesh fabric/TPU and synthetic leather in optimal distribution ensures a comfortable fit and low weight Integrated seamless midsole and upper construction sets a new standard in fit, stability, and performance with low weight Carbon fiber reinforced nylon midsole for good power transfer. Flat midsole stabilizes the foot and ensures maximum power transfer.