Exterior: • Microfiber upper • Competition-specific double-density natural rubber sole • New ankle reinforcement for more comfort and optimal protection • Molded plastic shin and heel protections • Replaceable polyurethane toe slider • Polyurethane protection for the selector • Three lateral air intakes for better ventilation • Velcro closure and zipper closure Interior: • Breathable air mesh lining • Polyurethane reinforcements • Polymer padding with memory foam • Dual flex TPU sole covered with shock-absorbing EVA material • Replaceable antibacterial insole with A.P.S. (Air Pump System).