Oscar Piastri and Esteban Ocon believe FIA’s new cooling vest for 2025 is “not quite ready to be used” yet, but have praised ...

But if a driver chooses not to wear a cooling vest in 2025, it is understood they must still carry an extra 500g in ballast within their cockpits to ensure they do not gain a competitive edge by ...

Formula 1 racing is awfully hot work ... As of 2026, wearing the vest will be mandatory for races when a heat hazard is declared. While the cooling system should help with driver comfort, air ...