NRG Air Carbon Reinforced sole with a stiffness index of 8.0 and 5 vents for perfect airflow.
- SPD pedal compatible (cleat plate not included).
- Ultra-snug fitting upper with BioMap Aero Overlap construction and micro perforations reduces aerodynamic drag.
- An integrated heel system prevents any slipping.
- 3 asymmetrical Velcro straps to reduce pressure on the foot.