Dive In To The 2021 Swimwear Trends Coming To A Pool Near You

Julia Marzovilla
Dive In To The 2021 Swimwear Trends Coming To A Pool Near You
Photo: Courtesy of Frankies Bikinis; Summersalt; L *Space; Adobe. Design: Cierra Miller STYLECASTER.

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Summer is finally here, but I have been dreaming about warmer weather for months now. These 2021 swimwear trends are also making it damn near impossible for me not to book a vacation right now. I love layering as much as the next fashion girl, but there is something so appealing about laying out in the sun all day in a cute bathing suit. If you haven’t seen this year’s trends all over your Instagram feeds already, you’re about to.

Finding the perfect bathing suit is tough, no doubt about it. With so many styles, colors and brands to choose from (let alone figuring out sizing), shopping for your ideal bikini or one-piece can feel daunting. Luckily, the biggest trends for 2021 will look good on just about everybody. Whether you’re looking for an edgy cutout design or a sleek one-shoulder silhouette for your next dream vacay, the options are pretty much endless.

One trend that is carrying over from last summer is the barely-there string bikini, so skimpy styles are all the rage yet again. Celebs like Meghan Thee Stallion, Lizzo and Jennifer Lopez are already on board, so count me in, too. If you’re looking for a little more support, try a bra-style bikini top. They hold everything in place throughout the day while still looking majorly sexy.

Ready to start shopping these trends for yourself? Read on to see the swimsuits I have my eye on right now and don’t hesitate to snag a few styles for yourself.

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Bra-Style Tops

If you feel like your bras are more comfortable than your bikini tops, why not try a swimsuit that’s literally modeled after your fave bra? Bikini tops that come in cup sizes offer better fit and support and help keep wardrobe malfunctions at bay, on even the busiest of beach days.

STYLECASTER | Swim Trends 2021

Courtesy of CUUP.

Scoop Top + Highwaist Bottoms

Lingerie brand CUUP knows a thing or two about creating bra-inspired swimwear, so prepare to live in this Scoop Top and the matching Highwaist Bottoms this summer.


STYLECASTER | Swim Trends 2021

Courtesy of Shade & Shore.

Underwire Bikini Top + Side-Tie High Leg Extra Cheeky Bikini Bottoms 

This bright blue bikini from Shade & Shore is so affordable, you’d never guess that both pieces retail for under $50. The string-style bottoms are also super cute!


STYLECASTER | Swim Trends 2021

Courtesy of Elomi.

Pina Colada Underwire Bikini Top +  Pina Colada Bikini Bottom

This stunning floral bikini top from Elomi is available in sizes E through H and band sizes 34 through 42, so if you know your bra size, you can’t go wrong. The matching blue bikini bottoms are also available in sizes 10 through 22.

String Bikinis

Welcome to 2021: The year of the string bikini. Adjustable tops and bottoms may seem daunting, but have no fear: these modern versions don’t slip and slide like they used to. While I wouldn’t recommend wearing one the next time you opt to swim a few laps, there’s no better option for days spent tanning by the pool.

STYLECASTER | Swim Trends 2021

Courtesy of L*Space.

Studded Kara Bikini Top + Studded Lennox Bikini Bottoms

These delicate studs add just the perfect amount of edge to this otherwise simple black bikini. Both the top and the bottom work with other, non-blinged-out bikinis, too!

STYLECASTER | Swim Trends 2021

Courtesy of Devon Windsor.

Eden Bikini Top + Emma Bikini Bottoms

Supermodel Devon Windsor designs some of the chicest, most understated bikinis on the market. This skimpy cream-colored top and the matching bottoms are dying to be brought on vacation.

STYLECASTER | Swim Trends 2021

Courtesy of PrettyLittleThing.

Pink Snake String Tie Triangle Top + Pink Snake Tie String Bottoms

Sick of wearing the same plain old bikini? Spice up your look with this snake-print bikini top and matching bottoms from PrettyLittleThing.


Officially give summer 2020 the cold shoulder with one of these asymmetrical suits. 2021 is all about one-shoulder swimwear and it’s the perfect alternative to the halter tops and bandeaus of yesteryear. Prepare to fall in love.

STYLECASTER | Swimwear Trends 2021

Courtesy of Frankie’s Bikinis.

Evangeline Skimpy One Shoulder One Piece

I have been looking at this suit from Frankie’s Bikinis since it dropped, so I might actually get out my debit card and treat myself to it. The dainty print is so sweet while the high sides and skinny one-shoulder strap are super sexy.

STYLECASTER | Swim Trends 2021

Courtesy of Aerie.

Printed One Shoulder Bikini Top + Printed Strappy Bikini Bottom

This pale green printed suit has a delicate one-shoulder design and is available in sizes XXS through XXL. The matching cheeky bikini bottoms follow suit (get it?) with strappy side detailing.

STYLECASTER | Swim Trends 2021

Courtesy of Summersalt.

The Sidestroke

You can buy this one-piece from Summersalt in tons of fun colors and in sizes 0-24. This hot pink and orange colorway will make your tan look super glowy.


Summer is all about showing some skin, so why not go all the way in a skimpy cutout suit? Cutout suits are bold by design, but you don’t need to feel worried about rocking them—there are so many options with differently-sized cutouts, so you can choose how much skin you dare to bare.

STYLECASTER | Swimsuit Trends 2021

Courtesy of Swimsuits for All.

Cup Sized One Shoulder Swimsuit

This color-blocked one-piece suit from Swimsuits for All’s collaboration with Gabi Fresh was not made for the faint of heart. I mean—just look at those sexy cutouts. Shop it now in sizes 10 through 26.

solid and striped  Dive In To The 2021 Swimwear Trends Coming To A Pool Near You

Courtesy of Solid & Striped.

The Sloane One-Piece

This candy-apple red suit from Sold & Striped is technically a one-piece, but the massive cutout in the center means that you get to show off a lot more skin.

STYLECASTER | Swimwear Trends 2021

Courtesy of Eloquii.

Side Tie Swimsuit

I’m not always a fan of leopard swimwear, but this  strapless one-piece is simply too good to pass up. I just might have to talk a walk on the wild side after all!