Bikinis have had their day in the sun — for summer 2024, one-piece swimsuits are officially the beachside look. From ruffled details to playful prints, there’s a suit to suit every mood, and Amazon (literally) has you covered with the cutest styles for less than $40.

Shopping for a new bathing suit online can be a lot, so we did the hard work for you and narrowed down Amazon’s selection of best-sellers to the 15 most flattering styles starting at $28. Our picks not only hit on all the trends of the season (hello high cuts and scalloped trims), they’re comfortable, too. Almost every best-selling suit features a ruched design that’ll accentuate your curves and help you feel your most confident. Whether you go for chic cutouts, vintage-inspired swimdresses, or full-coverage athletic styles, these on-trend suits are sure to make a splash. 

Amazon’s Best One-Piece Swimsuits

• Cupshe Ruffled One-Piece Swimsuit, $34.99 
• Tempt Me High-Neck Ruched One- Piece Swimsuit, $29.99 (orig. $34.99)
• Charmo Ruched V-Neck Cutout One-Piece Swimsuit, $35.99 (orig. $41.99)
• Yonique Vintage-Inspired One-Piece Swimdress, $36.99 
• Cupshe V-Neck Halter One-Piece Swimsuit,  $34.99 (orig. $44.99)
• Blooming Jelly Ruffled One-Piece Swimsuit, $36.79 
• Eomenie Cutout One-Piece Swimsuit, $35.99
• Suuksess Mesh Push-Up One-Piece Swimsuit, $35.99 
• Charmo Scalloped One-Piece Swimsuit, $32.69 (orig. $40.99) 
• Ekouaer Retro Push-Up One-Piece Swimsuit, $27.99 (orig. $34.99)

Eomenie Cutout One-Piece Swimsuit

If you thought one-piece bathing suits were basic, think again: This colorful, flirty design from Eomenie is “fun in the sun” in suit form. The front and back cutouts show some skin, while the tie closure and adjustable shoulder straps help you achieve the perfect fit. And with so many styles to choose from, including leopard print, blue stripes, and pink color-blocked, you can fill an entire drawer with just this suit alone. 

Over 5,000 people have purchased this number one best-selling one-piece in the last month, and it’s obvious why. “This is hands down the best-fitting, most flattering, cutest bathing suit I’ve ever gotten,” raved one reviewer, who also noted how convenient the adjustable straps are. “This suit exceeded my expectations,” said another shopper, adding, “It’s comfortable, flattering, and easy to put on.” 

Cupshe Ruffled One-Piece Swimsuit

Take on the coquette aesthetic with this romantic, ruffled one-piece suit from Cupshe. The dramatic V-neck and floral designs make this both on-trend and timeless for summers to come. Plus, the ruching across the front creates a flattering shape. This swimsuit may just become your go-to one-piece for every poolside hang this season — all you’ll need is a piña colada.

Nearly 25,000 people have given this suit a five-star rating, so we’re obviously ordering it in every color. The consensus from shoppers is that it’s comfy, supportive, gives just the right amount of coverage, and as one reviewer put it, “is simply stunning.” Another shopper, who opted for the navy floral design, said it’s “the best bathing suit I’ve bought in years,” since it’s “so comfortable and flattering.” 

Yonique Vintage-Inspired One-Piece Swimdress

Swimsuit trends come and go — everything from mesh paneling, dramatic cutouts, and crochet details have had their moment — but one suit trend that will never go out of style is a retro-inspired look, like this swimdress from Yonique. Available in 30 eye-catching designs, this one-piece is as classic as it gets. And since it’s a swimdress, you can sport it everywhere from the boardwalk to the hotel lobby; in other words, it’ll be your one-and-done outfit all summer.

“This suit feels amazing and looks fantastic,” said one shopper, who felt “completely comfortable” in it “even without a cover-up.” Another reviewer said the one-piece “fit like a glove,” and “they’ve never felt so confident in a swimsuit.” 

Before word gets out about Amazon’s epic collection of under-$40 one-piece swimsuits, shop our top picks and hit the beach in style. 

More Amazon One-Piece Swimsuits

Aidonger One-Piece Swimdress

Baleaf Athletic Adjustable One-Piece Swimsuit

Charmo Scalloped One-Piece Swimsuit

Cupshe V-Neck Halter One-Piece Swimsuit 

Ekouaer Retro Push-Up One-Piece Swimsuit

Charmo Ruched V-Neck Cutout One-Piece Swimsuit

Tempt Me High-Neck Ruched One-Piece Swimsuit

Hilor Twist-Front One-Piece Swimsuit

Blooming Jelly Ruffled One-Piece Swimsuit

Suuksess Mesh Push-Up One-Piece Swimsuit