The 16 best one-piece swimsuits of 2024

Supportive, flattering, comfortable– what's not to love? The Andie Tulum One-Piece takes top spot for the best one-piece overall. With compressive fabric, removable cups, cross straps for support, and the coverage of your choice (cheeky, medium, full), this suit makes it easy to find the right fit for you. 

Read our full review of Andie to see their other swim options and how they look on different body types.

Aerie's swimsuit section is an absolute treasure trove of budget swimwear. This particular swimsuit retails for under $50 but still maintains the high quality and trendy style of pieces double or even triple the price. In fact, the stretchy crinkle material that this one is made out of mirrors the smocked seersucker made famous by the designer swimsuit brand, Hunza G (which also made this list). The crinkle material is super trendy for summer 2024 and will keep you feeling comfortable and unrestricted while you relax on the beach. 

"I love all of my TA3 swimsuits, but the Lifty is my favorite because the underwire is so supportive and prevents the dreaded uniboob that some one-piece bathing suits can cause. The way the sizing works is nothing short of a miracle. You get to choose your bodice length (short or regular/long), your usual swimsuit size (from XS-4X), and your cup size (from A-J/K,) to get the absolute perfect fit, plus there are a bunch of color options. There's even an option for a high-cut version of this suit here if you prefer to show more leg. I've truly never had a one-piece fit me better!

"The thick shoulder straps are comfy and adjustable, and the cups cradle me perfectly with no digging. It even looks super cute as a bodysuit, so you could theoretically wear it with jeans or flowy linen pants and no one would be the wiser. But I know you're all here to find out whether it actually does what it promises to do, which is give you a snatched waist. The short answer is: yes! The longer answer is absolutely yes; the lacing in the back actually works like a dream to cinch your waist in. But the good news is that if you're ever feeling bloated or you just want something a little less compressive, you can always just loosen it up. It's like having two sizes in one! 

"Anyway, if you have a large chest, you won't regret buying this suit — as someone with an F cup, it's definitely the most comfortable and supportive one-piece I've ever tried. — Sally Kaplan, executive editor, Insider Reviews. 

See our full review of TA3 swim.

Claiming the title of the best one-piece is a tall order, but, as the name suggests, this one from Summersalt is getting pretty close. The wrap style is universally flattering, it's supportive, comfortable, and the compressive fabric keeps everything in place so you can enjoy the beach without having a fashion emergency. We love the variety of colors and patterns too.

Read our full review of Summersalt to see our favorite pieces. 

For a sporty, supportive option, the Malibu is one of the best one-piece options. With compressive fabric, a snap-front high neckline (which you can unbutton if you want to show a little more skin), removable soft cups, and an under bust elastic for a lift, this suit gives you maximum bust support that can handle even your toughest water workouts.

For the brave among us, there are bandeau one-pieces. They may not be the most practical for water activities that require a lot of movement (diving, surfing, you get the gist), but they are so chic and cute. This one from J.Crew comes in over 10 colors, a wide range of sizes (0 to 24), and has classic and long-torso fit options. 

Left on Friday's swimsuits are made to keep up with you wherever your beach day takes you, whether that's lounging on the sand or swimming laps. This classic silhouette boasts soft, compressive, flattering fabric and a cute cutout detail under the chest so you can show a bit more skin without wearing a bikini. 

As an activewear company, Athleta makes some of the best one-pieces for movement. Made with a stretchy, durable spandex that's also sun protective (it's rated UPF40+!) this suit is a no-brainer for enjoying your favorite water sports. 

Summersalt has made it on this list a few times because they are just that good. The brand always delivers on quality, fit, comfort, style, and fair prices, and for that we're huge fans. This floral suit, made in collaboration with Rifle Paper Co., is simply dreamy. The deep plunge, open back, and tie straps compliment the flirty floral patterns so well. 

Channel your inner 1950's pin-up girl with this retro belted one-piece. It offers moderate coverage, adjustable straps, and the belt can be removed so you can wear this as a plain old one-piece when you feel like it too.

The Mykonos One-Piece from Andie is proof that you don't have to show a lot of skin to feel sexy. The suit is simple and elegant, with a full bottom, medium cut leg, and a deep plunging v-neck. With sizes XS-XXXL and a classic or long torso fit, Andie makes it easy to find the best fit for your body type.

If support is your #1 concern when looking for a one-piece, look no further than Helen Jon. Most brands use fit models (models with the perfect proportions for any given size) to make sure their styles fit well. They work with one fit model in a median size of their range and then scale their patterns up and down to accommodate smaller and larger sizes, but Helen Jon realized this method was flawed. It doesn't take into account any variety in body type, shape, and age. That's why Helen Jon uses real people, like their employees, as fit models instead. Each piece is fit on at least seven different bodies to ensure it fits a myriad of body types and fits them well. 

This suit is fully lined and reinforced with an underbust seam. It also features a v-neck and shirring detail around the torso for a super flattering fit. While there are a few suits with underbust seams on this list, Helen Jon offers the most supportive fit for most body types and busts.

Read our full review of Helen Jon to see what we loved when we tested the suits.  

If you're looking for one suit to splurge on this season, Hunza G is worth checking out I tried a cheaper alternative, but was not impressed so I ultimately decided to give the brand a try and quickly found out it's worth the hype. While I was skeptic of the "one-size fits most" method, my Hunza G suits fit like a glove. The fabric is super stretchy and buttery soft, it expands and contracts to perfectly fit anyone who tries it on. The scoop back, signature crinkle textured fabric, and bright bubblegum pink color make this suit one that's sure to stand out. 

Abysse is all about empowering women with swimwear that looks, feels, and functions great. The Gail Suit delivers on all fronts, and then some. The one shoulder and blue-checkered pattern are so fun. It's double-lined, UV protective, made with recycled nylon, and is Global Recycled Standard and Control Union certified to boot.

This slinky one-piece is perfect for busts of all sizes, including those in the IBTC. It's fully lined but is free of pads and underwire. The peach perfect fabric is so stretchy and soft, it feels like second skin.

For moms-to-be, the best one-piece must be exceedingly comfortable. Hatch's maternity wares are thoughtfully designed to keep pregnant people feeling their best with clothing that feels good for their changing bodies. Not only is this one-piece stylish, but it features a shelf bra, adjustable and convertible straps, and gathering at the side seams for added stretch.