NRG Air Carbon Reinforced sole with a stiffness index of 8.0 and 5 vents for perfect airflow and SPD pedal compatible (cleat plate not included) The uppers seamless unibody construction reduces pressure points. The pores across the entire surface ensure optimal ventilation Part Number: 80211013 Barcode: 8030819179910, 8030819179996, 8030819179934, 8030819179842, 8030819179873, 8030819180015, 8030819179958, 8030819179897, 8030819179972, 8030819179859, 8030819180008 Product Code: NOR R CORE2