Verstappen Rejected Mandatory Formula 1 Cooling Vests
The Formula 1 driver argued that physical training remains the best method to handle extreme cockpit temperatures.
Updated on Oct. 3, 2026 in Motorsports
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Max Verstappen has formally rejected the introduction of mandatory cooling vests for Formula 1 drivers. He maintains that heat management is a fundamental aspect of a driver's physical conditioning rather than a technological requirement.
Why it matters
The debate highlights a division between prioritizing physical resilience and relying on engineering solutions under strict budget caps. George Russell noted that Mercedes has deprioritized such cooling systems to focus resources elsewhere.
Drivers who choose not to utilize a cooling vest system are required to carry an additional 0.5 kilograms of ballast. This measure balances the weight disparity between cars equipped with cooling systems and those that are not.
The players
Max Verstappen
He is a professional Formula 1 driver who won the 2017 Malaysian Grand Prix.
George Russell
He is a Formula 1 driver who expressed concerns regarding the development budget for cooling vest systems.
FIA
The Federation Internationale de l'Automobile serves as the governing body for Formula 1 and previously evaluated cooling vest mandates.
Mercedes
This is a Formula 1 constructor team that has prioritized other development choices over cooling vests under the budget cap.
The details
Drivers often use sauna training, with temperatures ranging from 85 to 100 degrees, to acclimate their bodies to high heat conditions. Mercedes stated that development of a bespoke cooling vest system has been sidelined due to budget cap limitations.
Timeline
Max Verstappen won the Malaysian Grand Prix in 2017.
A Formula 1 weekend took place in Malaysia in October 2024.
Season Trajectory
The push for cooling vests marks a shift in how teams weigh safety innovations against the strict performance requirements of the FIA Formula 1 budget cap. This internal development conflict impacts how constructors allocate limited funds across their vehicle chassis and secondary systems.
Drivers choosing to forgo cooling vests must account for an additional 0.5 kilograms of ballast, which can alter car performance characteristics. This weight penalty creates a tangible trade-off between thermal comfort and aerodynamic efficiency on the track.
The takeaway
Drivers continue to rely on extreme environmental training like saunas to maintain peak performance in high heat. Enthusiasts should note that human physiology remains a central pillar of motorsport despite the increasing role of onboard technology.
Further reading
For more information on the evolving regulations within the sport, visit the Motorsports section.
Source note: This article includes information reported by Motorsport.
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