Naomi Osaka wore a sparkling gold tennis dress layered under a black corset and pleated skirt during her first-round match at the 2026 French Open on May 26 in Paris [1, 2, 3, 4, 5]. She defeated Germany's Laura Siegemund 6-3, 7-6 (7-3) to advance to the tournament's second round [1, 2, 3, 4].

The gold dress was custom made by Nike, while the black outer pieces were designed by fashion designer Kevin Germanier [1, 2, 3, 4]. Osaka described the outfit as resembling the "Eiffel Tower at night when it sparkles," saying, "Funny enough, you know the Eiffel Tower at night when its sparkly? I think I look like that a little bit" [1]. She also expressed concern that the dress's reflective material might draw the umpires' attention. "When I first saw it, I felt like I look like the Eiffel Tower at night time when it's bright. Then I actually got a little worried because when the sun hits the dress, it reflects a lot, so I was a little scared the umpire was going to kick me off the court," she said [1].

Osaka embraced a more subdued look while entering the court, wearing the black corset and skirt which contrasted with the flashy gold underneath [1, 5]. Fellow tennis player Aryna Sabalenka praised Osaka's fashion, saying, "This is sparkling. I love it. I love that she is expressing herself and feels confident. That's the beauty of the fashion world, there's space for anything and I love that she's bringing it on court" [1].

Osaka, 28, has gained recognition as a fashion icon on the women's tennis tour in recent years. She highlighted how her on-court wardrobe has evolved since 2024 when she first embraced bold styles. "Sometimes people say athletes are in show business or entertainers or whatever. For me, Grand Slam walk-ons are the only time that I possibly feel like I'm an entertainer," she said [2]. She recalled landmark outfits like the Yoon Ambush dress in Australia and the roses in her hair at the U.S. Open [2]. Earlier this year at the Australian Open 2026, Osaka wore a jellyfish-inspired outfit she dedicated to her two-year-old daughter Shai [1, 5].

Osaka also expressed excitement about the potential return of Serena Williams, 44, to professional tennis. "Just to see [Serena] around the sites and playing matches again I think is really cool for tennis. I would be excited to see her outfits again, too. But also her playing," Osaka said [2]. Williams, who holds 23 Grand Slam titles compared to Osaka's 4, re-entered the sport's anti-doping pool in 2025, fueling speculation about her comeback [2, 3, 4, 5].

Osaka will next play in the second round of the French Open following her win over Siegemund on May 26 [1, 2, 3, 4].