The 16 Best One-Piece Swimsuits of 2021

Stylists advice for the most fashionable suits to wear under the sun

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The Rundown

Best Overall: Andie Swim The Mykonos at Andie Swim

"This best-selling suit comes in sizes XS to 5X and has secure straps that won’t fall off."

Best Budget: Kona Sol Pique Bandeau One-Piece Swimsuit at Target

"Your friends will think you picked up this budget-friendly swimsuit for triple the price."

Best Solid: Monday Swimwear Bahamas One-Piece at Monday Swimwear

"Each of the solid colorways is pretty enough for any destination or occasion."

Best Print: J. Crew Plunge V-Neck in Mini Floral Walk at J. Crew

"Inspired by an iconic British print house, this deep V-neck one-piece gives off retro summer vibes."

Best High Neck: SummerSalt The Cove at Summersalt

"This suit is for those who want a little more coverage by the pool or at the beach."

Best One Strap: Frankies Bikinis Seraphina One-Piece Swimsuit at Frankies Bikinis

"We love the retro vibes this terry one-strap swimsuit is giving off."

Best Strapless: La Porte Palmer Strapless One-Piece at La Porte

"You can easily pair this strapless swimsuit with a skirt, denim shorts, or trousers."

Best Underwire: Swimsuits for All Shirred One-Piece Swimsuit at Swimsuits for All

"Molded bra cups give a secure fit that won't move when you're playing on the beach."

Best for Plus Sizes: J. Crew Ruffle V-Neck One-Piece at J. Crew

"The ruffled sleeves and deep-V are sure to flatter all necklines."

Best for Petites: SummerSalt The Ruffle Backflip at Summersalt

"The deep-V silhouette gives the illusion of a longer middle, so it's great for petite frames."

It can be hard to find the perfect one-piece, but we’ve scoured the internet and asked insiders to bring you the best options—whether you’re heading to a local beach or just want to soak up the sun in a backyard swimming pool. 

If you’ve never ordered swimwear online, now’s the time to start: not only is it safer than going to stores right now, but trying on suits in comfortable surroundings—and in good lighting—goes a long way toward making you feel comfortable. “Always order online. Spare yourself the florescent lighting nightmare,” says stylist Erin Busbee. “It’s no fun to stare at yourself in that 3-way mirror half-naked. It messes with your mind.” 

Read on for some of the best one-piece swimsuits we’ve found.

Our Top Picks

01 of 16

Best Overall: Andie Swim The Mykonos

Andie The Mykonos

Courtesy of Andie

What We Like
  • Range of size offerings

  • Removable cups

  • UPF protection

What We Don't Like
  • Expensive

If you’re going to buy a swimsuit online, the easiest site to do it from might just be Andie Swim. The swimwear specialist offers a fit quiz so you have all the best options available to you from the get-go and shipping both ways is free. This suit is one of the women-led line’s best-selling options (which is saying a lot), comes in sizes XS to 5X, is great for a range of bust sizes, and has secure straps that won’t fall off.

Sizes: XS-5X | Material: Recycled polyester and spandex | Coverage: Full |
Care: Hand wash

02 of 16

Best Budget: Kona Sol Pique Bandeau One-Piece Swimsuit

Kona Sol Pique Bandeau One-Piece Swimsuit

Courtesy of Target

What We Like
  • Removable straps

  • Full coverage bottom

What We Don't Like
  • Cups are sewn in

Target’s revamped line of swimwear is anchored by Kona Sol, their in-house brand that makes cute swimsuits at affordable prices. Case in point? This budget-friendly bandeau-top swimsuit that your friends will think you picked up for triple the price.

Sizes: XS-XL | Material: Nylon and spandex | Coverage: Moderate |
Care: Hand wash

03 of 16

Best Solid: Monday Swimwear Bahamas One-Piece

Monday Swimwear Bahamas One-Piece

Courtesy of Monday Swimwear

What We Like
  • Flattering neckline

  • Range of colors

What We Don't Like
  • Expensive

With a cut that fits like your favorite bodysuit (go ahead and wear this as one too, if you want), this solid one-piece perfectly walks the line between stylish minimalism and sexy ‘90s vibes. And can we just talk about the range of colors? Whether you go for pared-down ivory, the line’s bronzed nude, or a versatile black, each of the colorways is pretty enough for any destination or occasion.

Sizes: 0-16 | Material: Nylon and spandex | Coverage: Moderate |
Care: Hand wash

04 of 16

Best Print: J. Crew Plunge V-Neck in Mini Floral Walk

J. Crew Plunge V-neck in Mini Floral Walk

Courtesy of J. Crew

What We Like
  • Adjustable straps

  • Removable padding

What We Don't Like
  • Runs small

Available in a floral print inspired by an iconic British print house, this deep V-neck one-piece gives off retro summer vibes. The cut, however, is all about modern minimalism, with a simple but flattering fit featuring a deep V, thin straps, and coverage on the backside.

Sizes: 0-14 | Material: Polyamide and elastane | Coverage: Moderate |
Care: Hand wash

Continue to 5 of 16 below.
05 of 16

Best High Neck: SummerSalt The Cove

Summersalt The Cove

Courtesy of Summersalt

What We Like
  • Built-in compression

  • Range of sizes

What We Don't Like
  • Limited colors

SummerSalt’s The Cove one-piece is great for those who want to stay a little more covered up when they’re at the beach—or just avoid the risk of a wardrobe malfunction while they’re playing in the waves. It has a shelf bra with built-in soft cups, as well as full coverage on the butt and a circular open back. Plus, it’s made from over three-quarters recycled material.

Sizes: 2-22 | Material: Recycled polyamide and elastane | Coverage: Full |
Care: Hand wash

06 of 16

Best One Strap: Frankies Bikinis Seraphina One-Piece Swimsuit

Frankies Bikinis Seraphina Terry One-Piece Swimsuit

Courtesy of Frankies Bikinis

What We Like
  • Minimal back coverage

  • Fits true to size

  • Soft terry material

What We Don't Like
  • Expensive

  • Minimal support

Frankies Bikinis is well known for their sexy swimsuits and this terry one-strap one-piece is no exception. It features a side cutout, a bandeau top with a silver hoop, and light rear coverage. We love the retro vibes this swimsuit is giving off. And when a suit is this cute, simply throw on your favorite pair of pants and a button-up and head to your next adventure.

Sizes: XS-XL | Material: Cotton and nylon | Coverage: Minimal |
Care: Hand wash

07 of 16

Best Strapless: La Porte Palmer Strapless One-Piece

La Porte Palmer Strapless One-Piece

Courtesy of La Porte

What We Like
  • Sustainable material

  • Trendy print

What We Don't Like
  • Limited sizes

  • Expensive

Floral prints are experiencing a comeback, and this strapless one-piece adorably frames the trend in a way that you can pair easily with a skirt, denim shorts, or trousers to get you to and from the beach. The smocking isn’t just a cute detail, either: it gives the top an extra hand staying up. It's made with Italian fabric that incorporates UPF 50 so you have added sun protection.

Sizes: XS-M | Material: Nylon and spandex | Coverage: Minimal |
Care: Hand wash

08 of 16

Best Underwire: Swimsuits for All Shirred One-Piece Swimsuit

Swimsuits for All Black Shirred Underwire One-Piece Swimsuit

 Courtesy of Swimsuitsforall

What We Like
  • Great size range

  • Full bottom coverage

  • Tummy control

What We Don't Like
  • Runs small

A best-seller for leading swimsuit e-retailer Swimsuits for All, this fully lined black shirred suit is meant to hug your figure while providing a secure, comfortable fit. That's thanks to power mesh tummy-control front lining and built-in underwire molded bra cups. The swimsuit’s back is cut relatively high and comes with thicker straps for extra lift and support.

Sizes: 4-26 | Material: Nylon and spandex | Coverage: Full | Care: Hand wash

Continue to 9 of 16 below.
09 of 16

Best for Plus Sizes: J. Crew Ruffle V-Neck One-Piece

Ruffle V-Neck One-Piece Swimsuit

Courtesy of J. Crew

What We Like
  • Goes up to size 24

  • Removable padding

  • Fits true to size

What We Don't Like
  • Short torso

Both completely timeless and right on trend, this J.Crew one-piece in gingham is pretty much summer in a swimsuit. We love the ruffled sleeves and deep-V neckline that make it cute enough to wear out as a top. The range of sizes and fun print makes this suit work for all body types, especially those who want to show some cleavage.

Sizes: 0-24 | Material: Poly, nylon and spandex | Coverage: Moderate |
Care: Hand wash

10 of 16

Best for Petites: SummerSalt The Ruffle Backflip

SummerSalt The Ruffle Backflip

Courtesy of SummerSalt

What We Like
  • Fun colors and prints

  • Made with recycled materials

What We Don't Like
  • Straps aren't adjustable

“I love the ‘Ruffle Backflip’ by SummerSalt for a petite frame,” says stylist Risa Kostis. “This silhouette caters specifically to a shorter torso using a deep-V to give the illusion of a longer middle, while also giving great coverage and support.”

Sizes: 2-22 | Material: Recycled polyamide and elastane | Coverage: Moderate | Care: Hand wash

11 of 16

Best for Pear Shapes: Becca Wanderlust One-Piece Swimsuit

Becca Wanderlust One-Piece Swimsuit

Courtesy of Nordstroms

What We Like
  • Removable cups

  • Adjustable straps

What We Don't Like
  • Minimal back coverage

“A pear or triangle-shaped figure might want to balance out their fuller hips, butt, and thighs,” says Busbee. “To create balance, you should add bold colors, prints, and details on the top and minimal solids on the bottom. An interesting neckline will also help draw the eye up and away.” This Wanderlust one-piece from Becca—one of her favorite labels for pear shapes—ticks all the boxes with an intricate crochet-look pattern and a beautifully detailed plunge neckline.

Sizes: XS-XL | Material: Nylon and spandex | Coverage: Moderate |
Care: Hand wash

12 of 16

Best for D - GG Cup Sizes: Fantasie San Remo Underwire One-Piece

Fantasie San Remo Underwire One-Piece

Courtesy of Bare Necessities

What We Like
  • Flattering neckline

  • Range of cup sizes

What We Don't Like
  • Straps can't be adjusted

“It can be difficult to find a swimsuit that makes you feel secure and comfortable when you have a larger chest,” says Jené Luciani Sena, bra and style expert and bestselling author of The Bra Book: An Intimate Guide to Finding the Right Bra, Shapewear, Swimsuit, and More!. “Look for a swimsuit that comes in actual cup sizes so you can get that perfect fit based on your bra size. You’ll also want to look for thicker straps for added support.” This one-piece features double-lined cups in sizes D to GG and has tanktop-style straps.

Sizes: 32D-40GG | Material: Nylon and elastane | Coverage: Full |
Care: Hand wash

Continue to 13 of 16 below.
13 of 16

Best Sexy: Solid & Striped The Veronica

The Veronica Ruby

Courtesy of Solid&Striped

What We Like
  • Full coverage bottom

  • Adjustable straps

What We Don't Like
  • Expensive

With lingerie-style detailing and a notched neckline, this swimsuit is gorgeous for breaking out during a day lounging at the pool. The four solid color options in black, white, navy, and red are classic picks that complement the sultry styling.

Sizes: XS-XL | Material: Recycled polyamide and elastane | Coverage: Moderate | Care: Hand wash

14 of 16

Best Retro Style: Solid & Striped The Nina Belt

Solid & Striped The Nina Belt

Solid & Striped

What We Like
  • Sustainable material

  • Adjustable straps

What We Don't Like
  • Only goes up to XL

Solid & Stripe’s The Nina swimsuit will lend your vacation wardrobe some serious James Bond vibes. The bright shades are as sunny as the weather on the beach, and the white waist belt—while admittedly not the most aerodynamic for swimming laps—gives the one-piece a splash of retro detailing.

Sizes: XS-XL | Material: Recycled nylon and spandex | Coverage: Moderate | Care: Hand wash

15 of 16

Best Sustainable: Monki Kikki Recycled Polka Dot Swimsuit

Monki Kikki Recycled Polka Dot Swimsuit

Courtesy of Asos

What We Like
  • Affordable

  • Flattering scoop neck

What We Don't Like
  • Limited sizes

  • Straps can't be adjusted

This trendy cutout swimsuit is made with recycled polyester from plastic bottles. It features tie detailing in the front and a scooped back. Note that there's no padding in this swimsuit so it will work best for women who don't need as much support.

Sizes: XS-XL | Material: Recycled polyester and spandex | Coverage: Moderate | Care: Hand wash

16 of 16

Best Active: Athleta Freestyle Colorblock One-Piece Swimsuit

Athleta Freestyle Colorblock One-Piece Swimsuit

Courtesy of Athleta

What We Like
  • Machine washable

  • Sustainable material

What We Don't Like
  • Runs really small

Ideal for women with smaller chests, this athletically minded swimsuit by Athleta is perfect for paddleboarding in the ocean (that high neck won’t let water flushing underneath your suit be a problem) or for swimming laps at the pool (thanks to an intricate network of supportive straps). It can also handle the rigors of triathlon trailing or workouts that take you from dry land to the water with UPF 50 material.

Sizes: 00-16 | Material: Recycled nylon and spandex | Coverage: Moderate |
Care: Machine wash

Final Verdict

Taking top marks for sizing, fit, and style, The Mykonos from Andie Swim (view at Andie Swim) is a great pick for a cheery, beach-ready one-piece—and it’s available in a range of colorways and fabrics for any mood and style.

What to Look For in a One-Piece Swimsuit

Fit

Bathing suits typically run small but that’s for a reason—oftentimes when they get wet they become saggy. Look for a suit that fits snug but doesn't ride up when it's dry. As long as it's staying in place when you try it on, you should be good to go.

Price

How much you spend on your swimsuit should reflect how much you anticipate you’ll be wearing it. If sitting out by the pool or heading to the seaside are frequent activities during your free time, you might want to spend a little more to feel comfortable and confident in something you’re practically living in. Likewise, if your vacation plans tend to be more landlocked, you might want to look for a more affordable swimsuit that you can wear a couple of times over a season or two—but won’t get worn out from overly frequent washings. 

Material

“Different brands have different combinations and percentages, but most of them include nylon and spandex,” says Busbee. The blend of these two makes an important difference when it comes to how the suit feels while wearing it: “The more spandex there is, the more ‘held in’ you’ll feel,” she adds. “You can find the fabric breakdown in the product description on most websites.” 

FAQs

How should you wash a swimsuit?

“Swimsuits should be washed by hand in almost all cases, and always immediately rinsed before washing if you were just in chlorine,” says Kostis. “Make sure you always read the care instructions on the tag to keep that perfect suit looking fabulous. There’s nothing worse than finding the ideal suit and having it be ruined in the wash. When in doubt, hand wash in gentle detergent and lay flat to dry,” adds Busbee.

As far as drying it—don’t! “Lay flat or hang to dry and never put in the dryer,” Kostis says.  

What types of swimsuits work best with your body shape? 

Pear/Triangle: “For this shape I love something that is higher cut on the sides, full coverage in the back, and that has either a halter neck or thicker straps—giving an overall more balanced look and drawing attention upward,” says Kostis.

“If you are an inverted triangle with wider shoulders, a halter neck swimsuit is a no-brainer for softening the look of the shoulders. Asymmetrical necklines can also help, so look for swimsuits with one shoulder. Another option is capped sleeves,” adds Busbee.

Apple: “Choose a suit that has an interesting neckline, like a sweetheart or V, to shape and accentuate the chest area,” Kostis says. “Suits that are ruched through the center or even have an illusion detail on the sides is also a great way to go.” 

Hourglass: Kostis recommends “A thin strap cutout or a belted tank-style one-piece is a great style for this body shape.” 

Rectangle: “Choose a sporty, boy short style one-piece or something lower cut with a shoulder ruffle detail to give your shoulders and hips a more full appearance,” says Kostis. Look for embellishments to add definition at strategic points, too: “Cutouts, belts, or any strategic design details around the waist will also create more of a waistline,” adds Busbee. 

Petites: “You can create the look of length with ruffles around the shoulders,” says Busbee. “Ruffles also create volume at the shoulders and in contrast, the look of a tinier waist. Lower rise bottoms will also help create more space.” Keep in mind your bottom half too: “High cut bottoms, also known as French cut bottoms are exactly what they sound like,” she adds. “They are cut higher on the legs, which makes your legs look longer.” 

Why Trust TripSavvy

Krystin Arneson is currently living in Blackbough swimsuits while on the beach in Mazunte, but these companies—both established and emerging—have all earned media praise for their selection, style, and quality.

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