FIA 8856-2018 approved Lightweight soft leather upper Hi-tech insole The One S race boots from OMP have been re-designed to offer increased comfort and protection. The boots comply with the very latest and more stringent FIA homologation which requires increased heat and flame protection. Increased heat and flame protection Improved heel support for recused fatigue Unique quick sliding lace system provides more even pressure for a more secure fittign with reduced pressure points Soft knit Nomex lining for a comfortable fit and feel The One S race boot is constructed from a lightweight and supple leather upper with toe reinforcement for protection. Increased support in the heel area improves comfort and reduces fatigue in the ankle. The hi-tech insole of the boot has been designed to increase sensitivity on the pedals and reduce stress on the feet. FIA 8856-2018 approved