The 25 Best One-Piece Swimsuits for Summer

With the coverage of a classic one-piece and the mix-and-match effect of a bikini, this color block swimsuit is the best of both worlds.

Sizes: 0–24

What reviewers are saying: “I went against my better judgment ordering a swimsuit online. I’ve never had luck with that…until now! This is just as cute as it is in the pictures and fits perfectly! I absolutely love it!”

Proof that covered-up swimsuits can still feel exciting, Left on Friday’s smoothing one-piece comes in an array of bright colors and features a playful peekaboo cutout.

Sizes: XS–XXL

What reviewers are saying: “I struggle to find one-piece suits that fit my long torso—even long-torso suits often don’t work for me. I took a gamble on this (sized up one size from my usual) and so happy I did. It’s super flattering, stays on well, and fits great (no wedgies or low boobs, as my long-torso gals can probably relate to). It’s the cool, non-mom-ish one-piece of my dreams.”

Juillet’s small-batch designs feature fabrics that are ultra-soft yet supportive, plus a vintage aesthetic with modern fits. We love the twisted detailing and dare-to-bare plunging neckline on this one-piece design, made even better by the low back and wide straps.

Sizes: XS–XL

Andie’s ribbed fabrics have a soft, comfortable handfeel made for lounging all day on a beach chair. When you're up and about, this one-piece swimsuit has a medium leg and bottom cut, plus wide supportive straps, for a secure fit.

Sizes: XS–XXXL

What reviewers are saying: “I loved this one-piece so much, I didn’t want to take it off. I loved that it didn’t dig into my hips, but just created a smooth profile. If I could take off a half a star it would be for the fabric under the armpits, which is a little pleated/wrinkled. It may be because I’m smaller on top than on the bottom. But it still looks amazing!”

Hunza G’s square-neck maillot is a mega bestseller, coming in tons of colors with new shades each season. “The fabrication enhances curves,” Wiggins tells Bazaar.com, adding, “Cleverly, the one-size offering works for a diverse range of sizes.”

Sizes: One size

What reviewers are saying: “CUTEST swimsuit, one size truly does fit all, and you can make it fit however you wish, cheeky or full coverage in the booty! Love the bright color too!”

Featuring Marysia’s signature scallop detailing, this one-piece is the modern LBD of your swimwear collection. “Marysia’s Santa Barbara one-shoulder swimsuit is flattering, whilst the signature scallop adds a sexier fashion touch,” Wiggins says.

Sizes: S–XL

What reviewers are saying: “Just looks great on,” “Beautifully made bathing suit,” and “Very flattering.”

Here’s a classic, sexy one-piece with a special twist: It’s a shaping and sculpting miracle, with four times the compression of other swimsuits.

Sizes: XS–2X

What reviewers are saying: “This is my favorite one-piece and I absolutely love it. I feel so comfortable yet perfectly sculpted.”

“Eres’s Cassiopée Bandeau Swimsuit is a favorite, as it looks clean and modern, and the strapless fit with bust support is extremely conformable and flattering on curves,” Wiggins says. “I also love any style with a square neckline and a low back, as it’s really flattering for customers with curves but also for more petite customers.”

Sizes: 38 FR–48 FR

Whether in this eye-popping neon green or a classic neutral, SKIMS’ slinky one-piece swimsuit is the best choice for taking in maximum vitamin D. The legs are cut high and the back is cut low for a more revealing look.

Sizes: XXS–4X

What reviewers are saying: “We all need at least one one-piece, and this is the perfect one. It holds you and snatches your body. The back is flattering as well and is far from boring.”

Jade Swim regularly sells out because it’s that good. The brand combines clean lines with simple nostalgic silhouettes for high impact on land and sea. Bonus: For each order placed, Jade Swim plants a tree on its customer’s behalf through Eden Reforestation Projects.

Sizes: XS–XL

Highlight your waist with this retro-style belted one-piece with bustier-inspired detailing that further enhances the sport-luxe femininity.

Sizes: XS–XXL

What reviewers are saying: “Have it in 3 colors. Beautiful shape. Flattering. Get so many compliments.”

“Boteh’s Verbena swimsuit plays into the one-shoulder trend whilst featuring the brand’s signature print, which makes it a great beach-to-bar one-piece,” Wiggins says. To ensure support, it’s designed with an internal shelf bra with removable cups and boning along the left side.

Sizes: XXS–L

“Sara Cristina’s Narcissus swimsuit is the perfect fashion swimsuit that can easily transition into a bodysuit, particularly in this season’s navy colorway,” Wiggins says. “I love the strong sense of style that is completely unique on the market.”

Sizes: XS–XL

This minimal square-neck suit featuring supportive shoulder straps can easily double as a bodysuit. It’s crafted from quick-drying stretch fabric, so you can slip into linen trousers or denim shorts and feel dressed after a dip.

Sizes: 1–5

Leave it to Cult Gaia to convince us we need a gold-tone floral-embellished one-piece. The cutout design, while playful, remains elevated with clean lines at play.

Sizes: XS–XL

Oséree's glittery one-piece, made in Italy from green stretchy nylon for minimal coverage, makes for a great addition to your swimwear collection. It offers just enough glam without going overboard.

Sizes: S–XL

This one-piece’s vivid print and clean lines, including secure clip straps and a light scoop neckline, appeal to minimalists and maximalists alike. The fit and fabric make it even better—it’s built with an inner shelf bra from world-renowned Italian Sensitive Fabrics by Eurojersey, featuring four-way stretch and SPF 50 sun protection.

Sizes: XS–XL

What reviewers are saying: “A gorgeous piece to own! Absolutely love love love this one-piece swimsuit! [...] This swimsuit is chic and classic, and it makes me feel like a million bucks!!!”

Sometimes it just comes down to three words: Versace, Versace, Versace. Okay, and an excellent fit, which this black one-piece offers courtesy of the smoothing stretch fabric.

Sizes: 1–5

You love A.L.C.’s romantic dresses and modern knitwear. Now it’s time to get the label’s recently launched ethical swim assortment on your radar. Each style, including this minimalist square-neck cutout one-piece, is crafted from a recycled blend of nylon and Repreve, a yarn generated from reclaimed ocean plastics.

Sizes: XS–XL

Mikoh basically started the cheeky swimwear revolution. This one-piece is minimal and ultra-versatile, featuring a straight neckline and high leg you can rock solo on a surfboard and later with a slip skirt for beachside cocktails.

Sizes: XS–XL