Listen to this article New F1 race director Niels Wittich reminded drivers prior to the Australian Grand Prix in April that the FIA International Sporting Code prohibits drivers wearing jewellery in the car. In the drivers’ briefing at the event, it was also reaffirmed that underwear, gloves, socks and balaclavas must be FIA homologated. These issues are now back on the agenda in the lead up to the inaugural Miami GP this weekend after a document was issued with an updated scrutineering policy to include checks concerning jewellery and underwear. This reinforcement comes on the grounds of improved safety, with Wittich explaining that wearing jewellery underneath flameproof clothing “can reduce the protection” as “metallic objects, such as jewellery, in contact with the skin can reduce heat tran …