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According to Charli XCX’s latest , one thing’s clear: Brat Summer 2.0 is here, and it’s hot. The megastar shared a mirror selfie giving fans a behind-the-scenes look at life on tour, but it was her matching bra and underwear set that really stole the show. Taking a break from Brat green, Charli opted for a Barbie pink U-plunge bra and thong from lingerie brand Fleur du Mal. But the ultra-flattering plunging bra isn’t only suited for the Brat tour, it’s also a top-rated favorite amongst customers of all bust sizes, garnering rave reviews for its comfort and push-up capabilities.

Fleur du Mal’s Le Stretch Micro Seduce U-Plunge Bra promises to feel like a second skin — a rarity in the world of bras — and, according to reviewers, it actually delivers. It’s part of the brand’s Le Stretch Micro collection, launched last year and marked by a soft microfiber fabric that boasts four-way stretch and, of course, a barely-there feel that makes it great for long, sweaty hours on stage or long, air-conditioned hours in the office (depending on your life’s calling). Since comfort is a top priority when it comes to bras and underwear, it’s no surprise that Le Stretch Micro’s top hits have accumulated rave reviews since Fleur du Mal first launched them. Now also earning the Charli XCX stamp of approval, the collection’s Seduce U-Plunge Bra features silky, adjustable straps, a racerback style option, moisture-wicking and UV-protecting properties, and a low-cut, push-up design that offers ample support with minimal coverage.

Color-wise, Charli XCX’s choice of undergarments is a stunner through and through. The “Pink Cadillac” shade, which Fleur du Mal unveiled in March 2024 as a nod to the pink that’s been trending since the release of “Barbie,” offers more of a pop than the traditional ultra-pale pink hue that bras and underwear are typically offered in. Those worried about visible pops of color need not be, though: The best-selling bra’s minimal coverage (can we talk about that curvilinear design and plunge?) will serve you well even with low-cut styles, like that halter wedding guest dress you’re going to be pulling out of the closet in the next few months.

As many shoppers can confirm, finding a bra that offers comfort, adequate support, and a sexy design all in one is no easy feat. But when it comes to the Fleur du Mal Le Stretch Micro Seduce U-Plunge Bra, three-time Grammy Award winners aren’t the only ones who can co-sign that this bra checks all the boxes. “This bra is such an interesting cut, but it really works under clothing to provide a nice push up and extra shape. Highly recommend and true to size!” wrote a reviewer who purchased it in a B cup size. Another buyer added, “I’m a 36DD at a minimum. And I stay in this bra; other plunges I fall out of, but this I stay in.” A bra that can push smaller busts upward to grant more definition, whilst also supporting larger cup sizes? That’s a win in our book.

Aside from all the summer dresses with plunging necklines you’re bound to wear this season, warmer temperatures also bring with them a slew of itty-bitty tops that were once hard to find bras to wear with. Fleur du Mal’s low-cut bra is not only accommodating to these styles, but is also lightweight itself. Summertime will feel as chic as ever with the bra’s roster of hues beyond the Charli XCX–preferred one, like the classic black and the goes-with-everything tan (both recently restocked after totally selling out). While there’s no “Brat Green” option yet (Fleur du Mal x Charli XCX collab when?), the crowd-favorite bra does come in a bodysuit option to channel your inner cool girl.

Fleur du Mal was launched in 2012, leveraging delicate and sophisticated fabrics across its lingerie, ready-to-wear selections, and newly-launched swimwear. Knowing exactly how to mix sexiness-plus-sophistication with cheekiness and whimsy (many Fleur du Mal prints definitely know how to have fun), the brand has attracted a loyal following over the years including Rihanna, the Hadid sisters, Margot Robbie, Addison Rae, Kylie Jenner (with her Knicks-themed All Star Demi Bra officially available to shop), Ana de Armas… and many more A-listers. Even Charli XCX, this year alone, stepped out in Fleur du Mal on three separate occasions: in the Instagram post in question, in her “party 4 u” music video (wearing Fleur du Mal’s Molded Luxe Triangle Bra and Luxe High Waist Panty), and also during her photoshoot for W Magazine’s January 2025 cover (Charli chose the Molded Luxe Triangle Bra in all of its silky glory for this occasion as well, albeit in black).

If there’s one parting message we want to convey about Fleur du Mal’s U-Plunge Bra before you take the plunge (no pun intended) and buy it for yourself, it’s that this bra is a unicorn. Supportive, über-flattering, sexy, and incredibly comfortable based on all that stretchiness, this wardrobe essential will make a world of difference in terms of feeling and looking your best. And, when it comes down to the summer clothing staples you need to shop in 2025, this just might be a more worth-it investment than anything else in your bookmarks tab.

You’ll thank us when you’re b-b-bumpin’ that beat this summer, with the Le Stretch Micro Seduce U-Plunge Bra making you feel on top of the world.

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Stacia Datskovska is a Senior Commerce Writer at WWD. Previously, she worked at ELLE DECOR as an assistant digital editor, covering all things luxury, culture, and lifestyle through a design lens. Her bylines over the past five years have appeared in USA Today, Baltimore Sun, Teen Vogue, Boston Globe, Food & Wine, and more. Prior to joining ELLE DECOR, Datskovska learned the ins and outs of e-commerce at Mashable, where she tested products, covered tentpole sales events, and curated gift guide roundups. She graduated from NYU with a bachelor’s degree in journalism and international relations. Datskovska regularly reports on trending, celebrity-approved fashions.