The OMP One Socks My2021 in Black are listed in size M with FIA 8856-2018 notation. These black My2021 socks are provided with the FIA homologation reference, identifying them as a compliant base-layer option for drivers. The size M listing helps buyers pick the appropriate fit for secure, comfortable use under driving shoes or with other certified apparel.
OMP One Socks My2021 Black - Size M (Fia 8856-2018)