Socks too high, you say? Well, there\u2019s a new sartorial saga unfolding in pro cycling. This time, the controversy is brewing at the Tour de France Femmes.<\/p>\n
With the individual TT coming up, there\u2019s some chatter in the peloton. And similar to the sock length debacles a few years ago, it involves cycling kit.<\/p>\n
Several Women\u2019s WorldTeams are urging the UCI to more closely enforce a little-discussed rule involving aerodynamic equipment hidden beneath riders\u2019 skinsuits.<\/p>\n
The UCI is banning socks (on helmets)<\/a><\/p>\n<\/p>\n The issue isn\u2019t entirely new, well, except now it involves sports bras. The UCI cracked down recently on riders positioning race radios on the front of their chest. At the 2026 men\u2019s Tour de France, the UCI also banned ice socks in TTs for the same reason. That followed some aerodynamic research suggested they could act as a \u201cchest fairing,\u201d smoothing airflow and reducing drag.<\/p>\n The rumours at the Tour de France Femmes<\/p>\n According to WielerFlits<\/a>, some teams believe a small number of riders might be wearing extra padding inside their sports bras during time trials to alter the shape of their chest and reduce aerodynamic drag. The practice is prohibited under UCI equipment regulations because it artificially changes a rider\u2019s body shape.<\/p>\n Aerodynamics expert Bert Blocken<\/a>, a professor at Heriot-Watt University in Scotland and LUT University in Finland, told the Dutch outlet that the concept is backed by science.<\/p>\n \u201cWe\u2019re talking about a chest fairing, which changes the airflow around the body and reduces pressure on the thighs,\u201d Blocken said. \u201cYou won\u2019t gain tens of seconds. But think about a 20- to 30-km time trial can save enough seconds to make the difference.\u201d<\/p>\n Blocken co-wrote research published in ScienceDirect<\/a> that claims an optimally shaped chest fairing could reduce aerodynamic drag by as much as 3.6 per cent.<\/p>\n That works out to around 0.78 seconds per kilometre under ideal conditions. Not a lot, like he said, but hey, that\u2019s something over a TT against the best in the world. The Stage 4 TT at the TdFF is from Gevrey-Chambertin to Dijon and is 21km long, for example. As we know in modern cycling, every tiny advantage helps.<\/p>\n Bra checks after the TT?<\/p>\n Blocken is the same guy that also spoke up about team cars stacking a dozen bikes on the roof racks to push riders along in a TT<\/a>. Dude knows all about how people can bend the rules to get an unfair advantage. He also spoke a few years ago about using double discs in a TT, like Wout van Aert at the 2024 Olympics.<\/a> (Which is allowed, of course, even if sketchy.)<\/p>\n The UCI rulebook states that clothing must not artificially modify a rider\u2019s morphology. Riders found violating the regulation can be disqualified and fined.<\/p>\n \u201cItems of clothing may not modify the morphology of the rider and any non-essential element or device, of which the purpose is not exclusively that of clothing or protection, is forbidden. This shall also apply regarding any material or substance applied onto the skin or clothing and which is not itself an item of clothing,\u201d the rule states.<\/p>\n Tuesday\u2019s time trial<\/p>\n Several teams have apparently said they would like to see post-race inspections conducted by female commissaires after Tuesday\u2019s 21-km Tour de France Femmes time trial from Gevrey-Chambertin to Dijon to ensure riders are complying with the rules. This might be a very strange day at the Tour. It\u2019ll make Lorena Wiebes being disqualified for having a bike that weighed about as much as a slice of cheese over the limit seem like nothing.<\/p>\n