"Riders’ Chests Suddenly Look Larger": 'Bra Pad' Controversy Emerges in Women's Cycling

Suspicion Over Use of Bra Pads to Manipulate Airflow
Attire Inspections Implemented Right Before the Start

From the 1st (local time) to the 9th, during the 2026 Tour de France Femmes held in Switzerland and France, a UAE team rider is smiling after completing Stage 2. Photo by Reuters Yonhap News

Allegations have arisen that some riders inserted pads inside their race suits to reduce air resistance in the 'Tour de France Femmes,' the premier stage of women's road cycling. This controversy has been termed the so-called 'chest fairing' debate. As of now, no specific rider or team has been found in violation of regulations, nor have there been announcements of related disciplinary actions. However, with several teams already raising suspicions, the Union Cycliste Internationale (UCI) has stepped up equipment inspections.

In the premier stage of women's road cycling, the 'Tour de France Femmes,' allegations have arisen that some riders inserted pads inside their race suits to reduce air resistance. Photo by AFP and Yonhap News Agency

On August 4 (local time), international outlets such as the Dutch cycling media WielerFlits and Cyclingnews reported that several women's WorldTour teams raised concerns immediately following the 2026 Tour de France Femmes' opening, noting that the chest area of some riders appeared significantly larger during the individual time trial than in regular road races. The claim is that riders were enhancing their chest shape by placing extra pads or materials inside their sports bras to gain aerodynamic advantages. However, the reports did not reveal the names of the riders or teams involved, nor did they present photographic or inspection evidence of pad usage.

No specific rider identified yet... Studies also show shape increases air resistance

The 2026 Tour de France Femmes is taking place over nine stages from August 1 to 9 in Switzerland and France. The individual time trial at the heart of the controversy was held that day over a 21 km course from Joux-la-Chapelle to Dijon in France. In an individual time trial, riders start one by one at set intervals. Unlike standard road races, competitors cannot exploit drafting by following directly behind another rider to reduce air resistance, so factors such as posture, helmet, race suit, and bicycle—all aerodynamic elements—significantly impact performance.

The 2026 Tour de France Femmes will take place over nine stages from August 1 to 9 in Switzerland and France. Photo by Reuters-Yonhap News

Increasing breast volume by chest fairing is one way to alter airflow dynamics. Placing a rounded object at the front of the chest can help divert air outward along the abdomen, pelvis, and thighs, reducing direct impact on the torso. Regarding this, Professor Bert Blocken, an aerodynamics expert at Heriot-Watt University in Scotland and LUT University in Finland, and his team published a 2024 paper analyzing the effects of chest fairings.

The researchers compared scenarios with no chest fairing to seven different device shapes using computational fluid dynamics simulations and wind tunnel experiments. The most effective device reduced total air resistance by up to 3.6%, and the researchers estimated a time improvement of at least 0.78 seconds per kilometer.

The 2026 Tour de France Femmes will take place from August 1 to 9, spanning nine stages across Switzerland and France. The controversial individual time trial was held on this day over a 21 km section from Joux-la-Chapelle to Dijon in France. Reuters Yonhap News

As controversy mounted, UCI race officials issued an unusual special notice regarding equipment ahead of Stage 4's individual time trial. The notice stated that riders must undergo final inspections for their bikes and attire up to 10 minutes before their start time. It emphasized the strict application of UCI regulation 1.3.032, which prohibits clothing, helmets, glasses, shoes, and communication devices that could alter a rider's physical form during a race.

If unapproved clothing or equipment that violates the rules is found, riders may face disqualification and fines. Some teams have even suggested that female commissaires inspect inside athletes' racing suits in a separate, screened-off area. The issue is aggravated by the fact that sports bras vary widely in pad thickness, shape, support, and compression. As a result, undergarment choices differ depending on the athlete's physique and physical needs.

It's also difficult to distinguish between the pads of standard sports bras and additional inserts for aerodynamic purposes during inspections. Furthermore, if physical examinations become excessively intrusive, there are concerns that the privacy and rights of female athletes could be infringed upon. Debate continues as to whether it is appropriate to uniformly regulate natural bodily differences and underwear choices through race rules.

'From chest fairing to "penis gate"...Body enhancement controversies in pursuit of record times'

This is not the first time that attempts to alter body shape to control airflow have stirred controversy in cycling. At the 2025 World Championships in Rwanda, some Belgian athletes reportedly positioned radio pockets on their chests, instead of the usual placement on their backs. There were also cases where riders placed water bottles at the front of their jerseys, but no penalties were reported at that time.

Ski jump suits serve a function similar to wings during flight. The larger the surface area of the suit, the more lift it can generate, potentially increasing airtime and flight distance. EPA Yonhap News

A similar debate flared up at the 2026 Milan–Cortina Winter Olympics ski jumping event, held this past February. German tabloid Bild reported suspicions that some male ski jumpers injected hyaluronic acid into their genitals or wore condom-shaped accessories to be assigned larger suits during suit measurements.

Ski jump suits serve a function similar to wings during flight. The larger the surface area of the suit, the greater the lift created, potentially resulting in longer airtime and flight distances.

If the reference point for measuring the athlete's body—specifically the crotch—is set lower than its actual location, there is a chance for athletes to wear longer and wider suits. Artificially increasing the volume of the genital region or groin can lower this reference point, which is the core of the so-called 'penis gate' suspicions. Related studies have shown that even a small increase in suit size can affect jump distance. According to Reuters, citing computer modeling research, every 1 cm of additional suit slack may increase flight distance by roughly 2.8 meters.

This content was produced with the assistance of AI translation services.