This racing boot is made of microfiber and D-Stone fabric with high grip TPU inserts. Practicality and safety are guaranteed by the replaceable magnesium sliders, the protective nylon on the shell, heel, and toe, and the exclusive D-Axial system in TPU that prevents any twisting of the foot. A real champion of lightness and performance, this boot features an internal retention band, rapid fastening and air channeling systems, magnesium inserts on the outer side and heel, and flexible joints to increase comfort when off the bike. Safety and confidence for maximum performance on any track.