Key Highlights:
- Red Bull Racing driver Isack Hadjar has called for driver cooling vests to be banned, arguing that extreme physical difficulty is essential to Formula 1.
- Four-time world champion Max Verstappen backed the opposition, stating the vests restrict movement and fail to remain effective over a full grand prix distance.
- Under current heat hazard regulations, drivers can opt out of the cooling systems by carrying equivalent ballast to ensure competitive weight parity.
Red Bull Drivers Voice Strong Opposition to F1 Cooling Vests
The debate surrounding driver welfare and technological intervention in Formula 1 has intensified following extreme conditions at recent events. Red Bull Racing driver Isack Hadjar has taken a firm stance against the implementation of active driver cooling vests, urging championship organizers to outlaw the systems entirely. Hadjar argues that withstanding severe physical strain and cockpit heat is a defining characteristic of top-tier motorsport that should not be mitigated by artificial equipment.
The discussion regarding cockpit temperature management returned to the forefront during the race weekend in Malaysia at the Sepang International Circuit, where severe heat and suffocating humidity pushed competitors to their physical limits. Formula 1’s cooling vest technology utilizes a fireproof garment worn beneath the standard race suit. The system functions by circulating chilled fluid through internal tubing to lower driver core temperatures. However, competitor reviews have been sharply divided regarding both the comfort and the long-term thermal effectiveness of the hardware.
Functional Limitations and Technical Drawbacks
While advocates on the grid point to the initial relief provided in sweltering conditions, detractors highlight rapid performance degradation inside the car. In practice, the liquid inside the tubing remains cold for only an opening stint of laps. As ambient cockpit temperatures climb, the cooling fluid inevitably absorbs the surrounding heat, causing the system to warm up significantly rather than cooling the driver down over the full race distance.
Hadjar made his feelings unequivocally known when addressing the media. I think it should be banned. Because it’s supposed to be tough,
the Red Bull driver explained to Motorsport.com and other media in Singapore.
Max Verstappen Critiques Restrictive Cables and System Longevity
Hadjar’s perspective is fully shared by his Red Bull team-mate, four-time world champion Max Verstappen. The Dutch driver dismissed the necessity of the apparatus altogether, citing physical restrictions and the mechanical reality that closed-loop fluid systems struggle under sustained thermal loads.
For me it’s not needed,
the Dutchman said. Yes, it’s hot, but it’s not a sauna, and with this cooling vest you have these stupid cables in your car, so it’s just limiting your movement as well.
Verstappen expanded on the system’s inability to endure a typical 90-minute race distance, noting: I don’t need it, even if it would work for one and a half hours, like cool, cool, I don’t need it, but it doesn’t work anyway for one and a half hours. I don’t think it has worked for one and a half hours in any category.
Why This Matters
Heat stress in modern grand prix racing has become a prominent regulatory talking point following several grueling events where extreme heat caused severe driver dehydration and exhaustion. To balance safety and competitive fairness, current sporting protocols dictate that whenever an official heat hazard is declared, drivers are granted the choice to fit their own cooling vest assemblies. To ensure that opting out does not grant a performance benefit through reduced car weight, any driver or team choosing not to utilize a cooling vest must carry an equivalent weight ballast. The blunt rejection from prominent figures like Max Verstappen and Isack Hadjar highlights an ongoing ideological divide in Formula 1 between modern biometric safety interventions and the traditional view of driver conditioning as a competitive differentiator.
Frequently Asked Questions
How do Formula 1 cooling vests work?
The cooling system relies on a specialized fireproof undergarment fitted with miniature tubing. A pump circulates chilled liquid through the tubes across the driver’s torso to reduce core body temperature, though drivers report that the fluid tends to absorb cockpit heat after only a few laps.
Are cooling vests mandatory for Formula 1 drivers?
No. When an official heat hazard is declared, teams and drivers have the option to use the cooling vest systems. Those who choose not to wear them must instead carry equivalent ballast in the car to maintain a level playing field without weight advantages.
Why are Isack Hadjar and Max Verstappen against the cooling vests?
Hadjar believes that extreme physical demands should remain a core element of Formula 1 racing, while Verstappen argues the connecting cables restrict driver movement and the cooling effect fails to last across an entire grand prix distance.




