Sigrid Ytterhus Haugset won the third stage of the Tour de France Femmes after the longest successful solo breakaway in the race’s history.The Norwegian national champion is only in her first year in a WorldTour team, but the Uno-X Mobility rider attacked from 88 kilometers out to distance herself from the peloton, finishing the 157km stage in four hours, five minutes and 59 seconds.She was chased by SD Worx Protime’s Lotte Kopecky, who rode alone from 74km out, but ultimately finished second, dropping 1:24 behind the winner.After the two opening days were held in Switzerland, Monday’s stage took the peloton into France for the first time, subjecting riders to 2,400m of vertical gain as they travelled from Geneva to Poligny in eastern France.Race favorite Demi Vollering was one of four names involved in an early crash on the first climb within the first 30km but she, Noemi Rüegg, Puck Pieterse and Magdeleine Vallieres all finished the stage.Elsewhere in the General Classification, Mauritian cyclist Kim Le Court-Pienaar motored into second but the race is yet to hit any major drama between the main contenders.The Athletic breaks down the key moments of the day.Third time lucky for the breakawayHaugset has been a late bloomer in terms of her cycling career, but you would not know from the 27-year-old’s effort on Monday. Most of the climbing fell in the first half of the stage, so going alone from 88km should never have worked. But it did.The Norwegian was nearly caught by chasing Kopecky, who got to within 10 seconds before being forced back in the final 20km.It was a hard day and the pain the stage leader was in was visible as she fought tooth and nail for every inch she got. Head bobbing, shoulders rocking and bike swaying, she crossed the line and raised her hand to the sky.Haugset led the third stage from 88km out (Nicolas Tucat / AFP via Getty Images)It was cycling at its best — an inspiring primal effort from an unexpected source. There wasn’t a person who wasn’t smiling at the finish.On Tuesday, she will take to the roads in the yellow jersey, and certainly deserves it.Lotte Kopecky’s brave effort will no doubt hurtKopecky attacked at 74km to go, staying solo in the chase for the Norwegian champion to the line.She spent the majority of the day attacking or in the break, well out of touch of the peloton and even closing on Haugset in the final 30km.The two-time world champion is a crucial part of her team’s general classification hopes, which Lorena Wiebes said in both of her post-win news conferences this week is their priority.Given she rode for Wiebes in stages 1 and 2, the energy expended on Monday could prove costly.Belgian rider Lotte Kopecky (Nicolas Tucat / AFP via Getty Images)If she rides for Anna van der Breggen in Tuesday’s time trial, she can use the day to recover. Many riders often gain fitness over a grand tour, although Monday’s effort will no doubt hurt, spending so long out front in temperatures that ranged between 95 and 101 degrees Fahrenheit (mid-to-high 30s Celsius).Given the strength of the competition, it would be incredibly impressive if SD Worx could win on three fronts: sprints with Wiebes, stages with Kopecky and GC with Van Der Breggen.Wiebes has already delivered emphatically, but the worry is they have spread themselves too thin.Can padding sports bras really help riders go quicker in a time trial?Cyclists are always looking for new ways to find marginal gains, but some are more unusual than others.The Dutch website Wielerflits reported on Sunday that some teams were getting frustrated by some riders padding their bras to get aerodynamic gains in time trials.By making their chest rounder, it could potentially shave off crucial seconds by reducing aerodynamic drag when riders are hunched over in the time-trial position, the report said. Such practice is prohibited under the UCI’s equipment rules which states riders cannot use equipment that changes their body shape.Koen de Kort, Lidl Trek’s head of technical and innovation, told The Athletic on Monday: “We did find that it’s actually beneficial. We’ve done some testing with a push-up bra versus a sports bra, we’ve definitely found some differences there.“I could imagine that it’s happened in the past already. Again, we never did this — I don’t think it’s in the spirit of the sport — but I’m pretty sure other teams have found the same results and have experimented with it.”The practice of filling out the front of the rider’s jersey has been seen before, using bidons, but is now no longer allowed in time trials.“The problem is how are you going to police it?” De Kort added. “That’s the biggest issue. You can say it’s not allowed (but) how can you say how much a woman needs? That’s time to get pretty much into a gray area of what you’re allowed to check.”The speculation has been amplified by the return of the individual time trial on Tuesday, which was not part of last year’s race.What’s coming up Tuesday?The fourth stage is a 21km individual time trial taking place from Gevrey-Chambertin to Dijon.A 1.8km climb at 6.9 percent punctuates the stage, opening up an opportunity for time gaps between General Classification competitors.Movistar’s Marlen Reusser will be tipped for the win, but Wales will be keen to see Zoe Bäckstedt in action on her Tour debut — and could 23-year-old Paula Blasi, one of the sport’s rising stars, be untethered from her domestique duties?Stage 3 Top 5: