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19 plus-size swimwear options you won't want to miss out on

Summer is coming 🌴

sexy plus size swimwear
Good American, courtesy of Alessia Golfetto, Raq

Plus-size swimwear, you say? Yep, despite the weather being unable to make up its mind of late, swimwear szn is upon us. And while I appreciate the world of bikinis and swimsuits in all their glory on even the chilliest of days, there's no denying now is the time to snap up the best of the new season picks before it's too late.

Looking for swimwear that is size-inclusive hasn't always been the easiest, but there are way more options now than ever before. Alongside the high-street labels and designer brands expanding their size range, there's a whole host of independent swimwear brands catering exclusively to plus-size girlies, including next-level bikinis for big boobs. And it's not just more sizing, but more styles too.

From bright colours to daring cut-outs as well as this season's trending micro bikini style, we’re bringing sexy to the beach this year, no matter your size! Because there’s something oddly liberating about being in a swimsuit – there’s nowhere to hide, and once you’re in the water, you’re just like everyone else, ya know? But don’t worry, there are optimal ways to exude sexiness with bikini bottoms that offer more coverage too, if that's more your vibe.

Part of preventing poor poolside apparel comes from exploring alllll your options, and this is safe space to do so. In the spirit of helping you find your next seaside or local lido go-to, we've gone and rounded up the best swimwear whatever your shape and size. Keep scrolling for our edit of the one- and two-pieces to shop now, ranging from sizes 16 to 32. Happy shopping and long-live swimwear weather!

1
best plus size triangle bikini

Lisa Says Gah x OOKIOH Ipanema top

Ipanema top
Credit: Lisa Says Gah

Lisa Says Gah is the one-stop shop for the most adorable summer pieces and patterns. Case in point: this patterned two-piece that's perfect for sunbathing on a beach in Sicily. Inspired by the tastes of Italy, the print screams summer.

Sizes: XS to 3XL

2
best plus size underwired bikini

Omnes Libby marble print bikini top

Libby marble print bikini top
Credit: Omnes

One of our favourite affordable sustainable fashion brands, Omnes, has just launched swimwear and if the fun and colourful designs weren't exciting enough, the size range – spoiler alert: the collection goes up to a size 24 – is sure to have you running to the website.

Sizes: 4 to 24

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3
best plus size swimsuit

ASOS DESIGN Curve crinkle scoop low back swimsuit

Curve crinkle scoop low back swimsuit
Credit: ASOS

Give the sun a run for its money as the most eye-catching thing on the beach in this tomato red one-piece. Yep, tomato girl summer is officially back for 2024.

Sizes: 16 to 30

4
best plus size tie-side bikini

SKIMS Lace swim triangle top

Lace swim triangle top
Credit: SKIMS

Kim Kardashian knew exactly what she was doing giving us this lingerie-inspired bikini for summer. Made from a satiny swim fabric and featuring lace trim, this swimsuit brings sexy to the beach. And it goes up to a 4XL!

Sizes: XXS to 4XL

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5
best curve bikini

Hollister Curvy ruched balconette bikini top

Curvy ruched balconette bikini top
Credit: Hollister

For the gals with big boobs, look no further. With its balconette silhouette, ruched cups and adjustable straps, this Hollister bikini offers plenty of support for those benefitting from a larger bust. And can we take a minute for the darling blue floral pattern?

Sizes: XXS to XXL

6
best plus size one-piece

Missoni One-shoulder metallic fine-knit swimsuit

One-shoulder metallic fine-knit swimsuit

Missoni has been the queen of swimwear since as far back as I can remember, and its Aztec collection is no exception featuring contemporary silhouettes and pretty pastel colourways. Sure, it's on the expenny side, but the quality is most definitely worth it, IMO.

Sizes: 6 to 16

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7
best plus-size swimwear with skirt

Simply Be Mix and match skort with built in brief

Mix and match skort with built in brief
Now 45% Off
Credit: SIMPLY BE

The butterfly print and supportive underwire top drew us in, but it was the ever-so-cheeky skort that sealed the deal. That asymmetric ruching detail? *Chef's kiss*.

Sizes: 10 to 32

8
best plus size metallic bikini

We Are We Wear Metallic Melissa Gathered Triangle Top

Metallic Melissa Gathered Triangle Top
Now 18% Off
Credit: We Are We Wear

We Are We Wear is an independent, black-owned business that launched in 2019. All the brand's swimwear comes in an extensive size range, having been expertly fitted and appropriate shape enhancements made, so no surprise it's a plus-size fave. This metallic bikini with its sexy drawstring ties is one of my all time faves. It looks just as good styled under beach cover-ups.

Size: XS to 3XL

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9
best plus size strapless swimsuit

South Beach Curve Frilly crinkle bandeau swimsuit in pomegranate

Frilly crinkle bandeau swimsuit in pomegranate
Now 39% Off
Credit: ASOS

I love this crinkle bandeau one-piece for its versatility. Pair it with a maxi or mini skirt (whatever your preference) for a daytime lunch look, then whip it off for lounging by the beach. The deep red hue gives luxury for added style points, too.

Sizes: 18 to 28

10
best sustainable plus size swimwear

Omnes Clarissa stripe print bikini top

Clarissa stripe print bikini top
Credit: Omnes

Okay, okay, one more Omnes bikini because this red and pink striped triangle design is *so* cute. Made from 100% recycled polyester, the super affordable price tag is yet another reason we're adding to bag stat.

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11
best plus size reversible bikini

Kai Collective Kaikini reversible string printed bikini top

Kaikini reversible string printed bikini top
Credit: Kai Collective

Everyone needs a Kai-kini in their wardrobe. I've been a long-time fan of the brand and this exact style has quickly become my favourite sexy two-piece. And… it’s reversible! Flip it around for a sparkly metallic blue colourway, giving you two swimsuits in one. OMG, and it comes in pink, too.

Sizes: XS to XXXL

12
best one size plus size swimwear

Youswim Eva one-piece

Eva one-piece
Now 10% Off
Credit: Youswim

Youswim has completely changed the swimsuit game for me. The brand's revolutionary stretchy material has allowed them to produce a 'one size fits all' design. Choose from Stretch I if you're a size 6-18, while Stretch II has been designed for those size 18-28. Amazing!

Sizes: 6 to 28

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13
best plus size swimwear with cup sizes

Raq Balconette top

Balconette top
Now 70% Off
Credit: Raq

Raq's bikini tops come in cup sizes, meaning you don't have to worry about being comfortable and supported when you take to the beach – a win-win in my book. This set is currently sitting in my closet waiting on the perfect summer's day for its debut and I am *so* excited to finally wear it!

Sizes: 8 to 20 / D cup to H cup

14
best plus size monokini

Good American Always fits monokini

Always fits monokini
Now 50% Off
Credit: Good American

This may be the second red swimsuit in this edit but if you ask me a fiery hot one-piece is an essential for a sexy summer, not to mention instant Baywatch vibes. Good American has blessed us with the sexiest cut-out swimwear to channel Pamela Anderson and live out our beach babe fantasies (just me?). Top tip: GA's ‘Always Fits’ line has *a lot* of stretch, so I'd recommend sizing down in this style.

Sizes: XXS to XXXXXL

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15
best plus size swim skirt

Evans Navy ruffle swim skirt

Navy ruffle swim skirt

If you were looking for something a little less exposing, a swim skirt is *so* adorable. Pair with a matching top – either a teeny tiny string bikini to a more modest tankini – and it’s basically two outfits in one. AKA a steal.

Sizes: 14 to 32

16
best plus-size underwire swimwear

South Beach Curve Exclusive underwire bikini top high shine brown

Exclusive underwire bikini top high shine brown
Now 53% Off
Credit: ASOS

South Beach is one of our fave go-tos for size-inclusive swim that just so happens to be sexy and stylish. Take this incred shimmery underwire top and high-cut bikini bottom, for example. TDF.

Sizes: 18 to 28

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17
best black plus-size swimwear

Madewell Plus Cinched cutout one-piece swimsuit

Cinched cutout one-piece swimsuit
Now 12% Off
Credit: MADEWELL

From easy-breezy sarongs to cute bucket hats and cutout one-pieces, Madewell has your whole beach lewk sorted.

Sizes: 1X to 4X

18
best one-piece swimwear for plus size

Summersalt The sidestroke swimsuit

The sidestroke swimsuit

If you think picking between 13 dreamy shades is the tricky bit, just wait 'til you try this one-piece on. Topping it in the future will be the real challenge.

Sizes: 4 to 28

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19
best plus-size modest swimwear

Yours Curve Black plunge bodycon swim dress

Black plunge bodycon swim dress
Now 16% Off
Credit: YOURS

Heading to the islands for some sun and celebrations soon? This black number will make the ideal party-to-pool-and-back-again outfit. Hello, Ibiza...

Sizes: 16 to 36

Headshot of Alessia Golfetto
Alessia Golfetto
Former Contributing Curve Editor

Alessia Golfetto is the Former Contributing Curve Editor of Cosmopolitan UK. A digital content creator, model and body positivity advocate, she's bringing everything plus-size fashion to your doorstep. With an elevated and imaginative sense of style, Alessia is dedicated to inspiring plus-size women to make them feel sexy, comfortable, cool and, most importantly, confident.

Headshot of Lauren Nicole Coppin Campbell
Lauren Nicole Coppin Campbell
Contributing Curve Editor

Lauren Nicole Coppin Campbell is the Contributing Curve Editor of Cosmopolitan UK. The former curve model and digital content creator has worked in the fashion industry, specialising in plus-size fashion content, for six years. Known for her excellent eye for style, captivating imagery and witty sense of humour to match, Lauren Nicole continues to inspire women to live boldly through their clothes.

Find her on TikTok 

Headshot of Courtney Smith
Courtney Smith
Fashion Assistant

Courtney Smith is Fashion Assistant at Cosmopolitan UK and Women's Health UK, where she works across both print and digital. She has been in the fashion industry for over nine years, initially as a model and later as a fashion assistant and writer in media. When she is not assisting on shoots with the likes of Tom Daley and Raye or bringing about a surge in online hula hoop sales, she can be found at the ponds getting in some quality time with her one true love: swimwear.

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