The 2025 Swim Report—Here's Every Major Trend to Know

a collage of swimsuit trends
(Image credit: @kelseymerritt; @fakerstrom; @rosiehw; Launchmetrics; Ysé; Burberry; Vix Paula Hermanny; Hunza G; Bond-Eye)

At the onset of summer, we're thinking about swimwear and the key suitcase-worthy styles to shop for vacation this season. For summer 2025, we are seeing some clear trends taking shape. Many of them are connected to what is happening in fashion in a larger sense. The gingham prints that have been returning to everything from kick-flare pants to skirt sets are also appearing on bikinis. Personality-infused fashion—often seen on the street style scene with pillbox hats and bag charms—is entering swimwear in the form of stone-adorned straps and hardware buckles. The pendant necklaces that are taking over on the style set are also a key accessory to style with swimwear.

Other trends feel like a continuation of what we saw last summer with some subtle tweaks. In 2024, we saw the rise of printed designer motifs, and that is only expanding. Martini green was a key color last year and has extended to earthier tones. Others feel fresh for summer 2025, especially new riffs on the classics. Nautical stripes are getting a refresh, and one-pieces are appearing in deep-plunge silhouettes. Ahead, shop the seven biggest swim trends to know for summer 2025.

Collage of pendant necklaces.

(Image credit: @rosiehw; Launchmetrics; Moda Operandi)

The piece every fashion insider is clamoring to get in their closet for summer? A pendant necklace. Pieces from brands such as Juju Vera and Le Sundial have taken on IYKYK status and are selling out faster than they can be restocked. While it started out as a jewelry trend worn with everyday clothing, it is now making its way to the vacation set on holiday in the South of France and the runways in the collections of Chanel and Chloé. We're expect to see pendant necklaces with tassels and charms layered over swimwear all summer long. It's a swimwear trend that isn't actually about the swimsuits themselves—just how to style and accessorize them.

Collage of women wearing swimsuits with deep plunges.

(Image credit: @lefevrediary; Net-a-Porter; @fakerstrom; Moda Operandi; @kelseymerritt)

Deep, plunging necklines are a common thread we're seeing in the realm of one-pieces for summer 2025. In past seasons, contrast-trim designs and simple sporty silhouettes took over, but now, we're seeing a shift to styles that are sexier and more skin-baring yet elegant. The swimsuits are often styled with wide-brim hats, classic sunglasses, metal jewelry, and sarongs tied at the waist that dial up the sense of glamour the plunging one-pieces evoke.

Collage of women wearing gingham swimwear.

(Image credit: Courtesy of Juillet; Ysé; Céline, @tamaramory; Hunza G)

The print that is more commonly known for its contribution to summer picnic dresses and vintage Brigitte Bardot references has officially made its way to the swimwear market. Gingham is popping up even in designer collections that you wouldn't expect it to be in—yes, that is a Celine gingham swimsuit. Brands are making this throwback print feel especially fresh in modern cuts, like high-waisted bikinis and ruched one-pieces. This is a trend that simply blurs the line between sweet and cool, offering a playful take on classic style that looks just as good poolside as it does under an oversize button-down at lunch.

Collage of earth-tone swimwear.

(Image credit: @tylynnnguyen; @jastookes; Courtesy of Hunza G; Net-a-Porter; @sophisticated_livings)

If you must wear a solid color to the beach this season, let it be this one. Neutral swimwear isn't new, but the palette has expanded into deeper, richer territory. Clay, sienna, sage, and espresso are dominating the racks, and they bring a certain effortless polish to your beach-day lineup. Bonus points if you pair them with leather sandals and gold jewelry—it's giving low-effort luxe in the best way. These grounded hues are the swim equivalent of a really good capsule-wardrobe piece: timeless, wearable, and quietly confident. Wear one and you'll glimmer against the sand.

Collage of swimwear with stone and metal hardware.

(Image credit: Courtesy of SIR; @preciousleexoxo; @styledsara; @rikkekrefting; Vix Paula Hermanny)

These aren't your basic black bikinis—they're statement pieces disguised as instant classics. Designers are finding ways to spruce up longtime favorite swimsuit silhouettes. Think a triangle bikini top with a bit of beading on the straps and a classic leopard one-piece with an unexpected metallic clasp in the back. You deserve a swimsuit collection that feels more editorial than athletic. It's less about blending in at the beach and more about turning heads from the towel to the cabana bar.

Collage of striped swimwear.

(Image credit: Courtesy of Moda Operandi; Launchmetrics; @tinakunakey; Solid & Striped; @caseyjamess_)

Nautical swim has always been a summer staple, but this season's version feels a little more refined. Its original heyday was more of a ready-to-wear moment—e.g., Audrey Hepburn wearing a striped collared shirt in the '50s—but now, it's set to be booming in swimwear collections. Think sleek one-pieces with strategically placed stripes and barely-there bikinis with a sailor-inspired twist. There's a retro charm to it, especially when paired with cat-eye sunglasses and a crisp white linen cover-up, but it still feels modern enough to wear in Saint-Tropez or at your friend's rooftop pool party.

Collage of swimwear with heritage prints.

(Image credit: @anna.porte; Courtesy of Burberry; Net-a-Porter; @threadsstyling; @lirisaw)

If it looks like something a stylish woman might've worn on a Mediterranean vacation in 1974, you're right on track. Iconic prints from brands such as Pucci, Missoni, and Burberry are staging a full comeback—swirls, chevrons, and checks included. Whether you opt for a retro halter one-piece or a string bikini with vintage energy, these swimsuits are a nod to the past in a way that feels incredibly now. Just add oversize sunglasses and a headscarf for the full effect. Bonus points if you dug through a vintage store to find a chic cover-up.

Associate Director, Special Projects

Kristen Nichols is the Associate Director, Special Projects at Who What Wear where she oversees luxury, runway content, and wedding features, and covers fashion within the luxury market, runway reporting, shopping features, trends, and interviews with leading industry experts. Kristen has worked with brands including Prada, Chanel, and Tiffany & Co., and her style has been featured in publications including Vogue.com, Vogue France, WWD, and the CFDA. Kristen began her career at Rodarte, where she worked on styling, photo shoots, and runway shows, and at Allure, where she moved into print and digital editorial. She graduated from the University of Southern California, where she studied art history and business, and currently lives in New York.