16 best maternity swimming costumes UK – top pregnancy swimwear for 2023 | The Sun

IF you’re pregnant and planning your summer holiday, then of course a new swimsuit is a given and the best maternity swimming costume will be the one that fulfils all of your essential requirements as a mum-to-be.

Pregnancy is an exciting time, but it’s also a time of massive change in your body, so when you’re looking for a maternity swimsuit you’re looking for something that will grow with you, support your baby bump, be comfortable to wear and of course, look a million dollars!

Luckily, maternity swimwear fashion has come a long way in recent years, in terms of both style and substance.

You'll find a huge range of maternity swimming costumes available – from tankinis with contrasting top and bottom designs to one-pieces with different necklines and fits to suit your shape and style.

The best maternity swimming costumes also have features such as adjustable straps and side ruching for extra comfort and flexibility for your expanding bump.

There's swimwear in a whole range of eye-catching colours and fun summer prints with on-trend details like frills and tie fronts as well as strapless and nautical stripe styles.

Plus, some maternity costumes can be worn after pregnancy when youre nursing your baby, as they have tie or zip fronts.

Read on for our roundup of the best maternity swimming costumes to get you ready for summer 2023.

Best maternity swimming costumes at a glance:

  • Best classic design: New Look Maternity Blue Spot Ruched Wrap Swimsuit
  • Best for swimming lengths: Speedo Maternity Swimsuit
  • Best nursing swimsuit: La Redoute Belle Ile Maternity Swimsuit
  • Best Maternity Tankini: Seraphine Floral Contrast Maternity Tankini
  • Best strapless maternity swimming costume: JoJo Maman Bébé black ruffle maternity swimsuit
  • Best for tall women: Long Tall Sally Maternity Red Leopard Print Tankini
  • Best for curvy women: Very Bump It Up Maternity Curve Blue Leopard Print Swimsuit
  • Best for retro style: Amazon East Elegant Retro Halter Swimsuit

New Look Maternity Blue Spot Ruched Wrap Swimsuit

  • Maternity Blue Spot Ruched Wrap Swimsuit, £29.99 from New Look – buy here

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This simple navy and white spot print is both timeless and stylish, definitely one for sipping mocktails by the pool as well as relaxing on the beach.

The ruched sides are more than just a design detail as they stretch with your growing bump. The on-trend crossover top and adjustable shoestring straps are pretty as well as practical, and the fact it’s lined hopefully means it shouldn’t turn see-through when you go in the water. There’s a good elastane content as well for extra stretch.

Overall this swimsuit is very flattering and we love it!

Machine washable

Material:  80% nylon, 20% elastane with 100% polyester lining, sizes: 6 – 18

La Redoute Belle Ile Maternity Swimsuit

  • Belle Ile Maternity Swimsuit, £95 from La Redoute – buy here

This swimsuit will not only last you through your entire pregnancy, but the zip front makes it ideal for nursing once baby arrives.

We love the summer-blue colour with the contrasting sunny orange of the zip and logo, as well as the classic cut and style. Wear with the straps as they come or cross them over at the back for a different look.

The stretch in the material together with the gentle ruched detailing at the sides, ensure a comfortable fit for the full nine months.

Material: 95% polyamide, 5% elastane, sizes: S, M, L and XL, colour: blue and white


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Speedo Maternity Swimsuit

  • Maternity Swimsuit, £42 from Speedo – buy here

Speedo is a brand for serious swimmers so it’s good to see they include a maternity swimsuit in their offering.

If you still want to hit the pool during your pregnancy, even if you’re more about the floating and stretching than racing lengths, then this one could be the one for you.

The design is classic with a sports back – this is definitely for swimming as well as looking good – and there’s a cute logo on the front. Side ruching means the swimsuit will stretch with your bump and the Endurance10 fabric will keep your suit fitting like new for longer, says Speedo.

Sizes: XS, XL and XXL

Long Tall Sally Maternity Red Leopard Print Tankini

  • Maternity Red Leopard Print Tankini, £39.99 from Long Tall Sally – buy here

Swimsuits can often be short in the body if you’re more than average height, and that’s something you don’t want during pregnancy when comfort is a pre-requisite. With clothes from Long Tall Sally however, you know height isn’t going to be an issue.

This fun tankini top features gathers under the chest that fall to a pretty peplum. The deep U-shape back also has ruched detailing, which is echoed in the bottoms at the sides, for extra stretch as your pregnancy progresses.

Material: 85% polyester, 15% elastane, sizes: 10, 12, 14, 16, 18, 20, 22 and 24 colour: red leopard print, black dalmatian print

Amazon East Elegant Retro Halter Swimsuit

  • East Elegant Retro Halter Swimsuit, from £30.99 at Amazon – buy here

For a touch of Hollywood glamour and a throwback to ‘50s style then this swimsuit is ideal. We can just see Audrey Hepburn and Grace Kelly wearing this on the beach at Cannes, complete with wide-brim straw hat, oversized shades and mocktail in hand.

The adjustable tie halter top features a cross-over design at the front and straight cut across the back, while ruching at the sides provides plenty of stretch for over your bump. The bottoms are shorts-style and very flattering.

Machine washable.

Material:  82% nylon, 18% elastane, sizes: XS – XXXL, colours: black, navy, green, pink floral, blue floral, purple floral

Mamalicious Maternity and Nursing Polka Dot Swimsuit

  • Maternity and Nursing Polka Dot Swimsuit, £38 from Mamalicious – buy here

This stylish one-piece will not only take you through your pregnancy, but you’ll be able to wear it afterwards while nursing, so it’s a great investment.

The front features ruching at the sides and chest, with a pretty tie bow detail. The shoulder straps are adjustable and the low leg cut means you won’t have to worry about the material riding up.

It’s also made from 84% recycled polyester, so its green credentials look as good as the polka dot pattern.

Hand wash only.

Material:  84% polyester, 16% elastane, sizes: XS, S, M, L and XXL, colour: black with white spots

Seraphine Floral Contrast Maternity Tankini

  • Floral Contrast Maternity Tankini Set – Blue & Green, £52 at Seraphine – buy here

Who says everything has to match. This fun tankini features contrasting top and bottoms – and it looks fab!

The floral top works well with the striped print bottoms and would also look great with leggings or jeans off the beach, later in the day.

Side ties mean you can change the length of the top to suit – just pull them to make it shorter, loosen them to add length. The bottoms also have a foldable waistband so you can change your look from underbump to overbump depending on your mood or what you find most comfortable.

Machine washable at 30°C.

Material:  82% nylon, 18% elastane with 89% polyester and 11% elastane lining, sizes: XS – XXL

Boohoo Maternity Frill Plunge Swimsuit

  • Maternity frill plunge swimsuit, £15 at Boohoo – buy here

This cute coral maternity one-piece has a flattering plunge neckline with frill detailing, as well as ruching at the sides to stretch with your baby bump as it becomes bigger.

Team it with a floppy hat, kimono cover up, sliders and sunscreen for a super stylish holiday look that will take you from selfies on the sand to lunch at your favourite beachside restaurant.

It’s also available in black and khaki – and at this great price you could treat yourself to all three without breaking the bank.

Machine washable.

Material: 82% nylon, 18% elastane sizes: 8, 10, 12, 14, 16 colours: coral, black and khaki

Very Bump It Up Maternity Curve Blue Leopard Print Swimsuit

  • Bump It Up Maternity Curve Blue Leopard Print Swimsuit, £33.99 from Very – buy here

This pretty leopard-print one-piece is perfect for lounging by the pool, on the beach or in the garden, as is or teamed with a sarong, sun hat and sandals.

The adjustable tie straps, low-cut front and plunge back all add up to a stylish swimsuit that will see you through the summer months.

It’s practical too, with ruching to stretch over your bump as it grows – and it starts from size 16 so is ideal for fuller figures.

The blue green colour is also gorgeous!

Hand wash only.

Material:  86% polyester, 15% elastane, sizes: 16, 18-20, 22-24, 26-28 and 30-32, colour: blue leopard print

Seraphine Nautical Stripe Tankini

  • Nautical Stripe Maternity Swimwear Tankini, £45 at Seraphine – buy here

Specialist maternity brand Seraphine, beloved by royals and celebs alike, has some fantastic swimwear options for summer 2023, like this timeless navy and white striped tankini.

The adjustable straps and side-ruching ensure a comfortable, flexible fit at all stages of your pregnancy, while the red lace-up detailing on the front gives this tankini an extra fashionable edge.

The top is long enough to cover your bump without riding up – and to cover it fully from the sun – while the bottoms sit underneath your tummy for a comfortable fit.

Material: 87% polyester, 13% elastane sizes: S, M, L and XL colour: navy and white stripe with red lace detail

Asos Mamalicious Maternity Tankini in Animal Print

  • Mamalicious Maternity Tankini in Animal Print, £45 at ASOS – buy here

Mamalicious is another brand to have on your radar when it comes to maternity swimming costumes.

We love this animal print tankini on so many levels and not just because of the stylish black and white pattern.

It’s practical, with adjustable straps and ruched tie sides so you can wear the top short or long, and it has a flattering plunge neckline. The colour combo means it will go with anything you choose to wear with it and importantly, you won’t need to relegate it to the drawer when baby arrives as it will continue to look fab post-pregnancy.

Material: 84% polyester, 16% elastane sizes: XS, S, M, L and XL colour: black and white zebra print

JoJo Maman Bébé black ruffle maternity swimsuit

  • Black ruffle maternity swimsuit, £38 at JoJo Maman Bébé – buy here

You shouldn't have to sacrifice style for comfort when it comes to maternity swimwear and with this classic black one-piece from JoJo Maman Bébé you won’t have to.

The ruffle detail adds a chic touch to the swimsuit, which provides great support and fit while also managing to look flattering at the same time.

Adjust the shoulder straps for maximum flexibility or remove them altogether to avoid any strap marks in the sun.

JoJo Maman Bébé is a popular destination for maternity wear, so it’s worth checking out their website for the rest of your holiday wardrobe.

Material: 82% polyamide, 18% elastane; lining: 100% polyester, sizes: S, M, L colour: black

Shein Polka Dot Print Cut-Out Swimsuit

  • Maternity Polka Dot Print Cut-Out One Swimsuit, £13.49 at Shein – buy here

This swimsuit gives the impression of a two piece but with the support of a one-piece, so it’s great for ringing the changes on the beach or by the pool. And of course, being from Shein, it comes in at a purse-pleasing price.

Ruching round the bust coupled with the plunge neckline accentuates in all the right places, while gathers at each side of the suit ensure lots of stretch and flexibility for your bump as you get bigger.

The bra top also has removeable padding so you can opt for with or without, to suit your style and comfort needs.

Material: 82% polyester, 18% elastane sizes: S, M, L and XL

Best halterneck maternity swimming costume: La Redoute Ruffled Maternity Swimsuit

  • Ruffled Maternity Swimsuit, £28.80 at La Redoute – buy here

This one-piece is ideal whether you’re heading to the beach on holiday, or to your local swimming pool for aqua natal classes.

The ruffle detail and flattering colour make for a pretty combination, while the tie halter neck is both stylish and practical, providing security and support while you’re swimming.

Ruching at the sides ensures your suit will grow with your bump, giving a flexible, stretchy fit that will remain comfortable throughout your pregnancy. The cups also feature removeable padding so you can choose whether you prefer to wear with or without.

Material: 90% polyamide, 10% elastane; lining: 100% polyamide, sizes: 8, 10, 12, 14, 16 and 18 colour: dark green

Decathlon Romane 100 Maternity Swimsuit

  • Romane 100 Maternity Swimsuit, £17.99 from Decathlon – buy here

You can still swim while pregnant generally speaking – and many women find it super relaxing, enjoying the feeling of weightlessness when in the water.

This great swimsuit by Decathlon is perfect for your exercise needs. It has thick shoulder straps to support you and a high elastane content, so the swimsuit will grow with you throughout your pregnancy.

The U-shaped back makes putting on and taking off the swimsuit uber easy, while the coral stripe under the bust makes this so much more than just another swimsuit.

Material: 80% polyamide, 20% elastane; lining: 100% polyamide, sizes: 8, 10, 12, 14, 16 and 18 colour: black and coral

Gap Maternity Recycled One-Piece Swimsuit

  • Maternity Recycled Square Neck One-Piece Swimsuit, £39.99 from Gap – buy here

If you're looking to stand out from the crowd this summer, this 'sizzling fuchsia' maternity one-piece is the perfect swimwear for a summer beach holiday.

Made from 95% recycled polyester, Gap has also got its eco-friendly credentials in order with this hot pink swimsuit, so you can feel like you're doing your bit for the planet while looking extra chic with your bump.

Plus, it's currently on offer reduced from £64.95 to £39.99 – but be quick, availability is limited.

What should I wear to the pool when pregnant?

When you’re pregnant comfort is paramount, so choose a maternity swimming costume that feels good to wear. There’s no reason why you can’t have style and comfort at the same time though, as our round-up of fab pool wear shows.

The best maternity swimming costumes have lots of stretch and incorporate practical details such as gathers at the side for extra flexibility over your growing bump; they also offer support – both in the way the material holds your tummy and in the design of the straps.

Also, bear in mind what you want the swimsuit to do – are you going to wear it for relaxing by the pool, or are you going to want to swim in in? If it’s going to get wet then a lined costume could be a good idea.

Do you need a maternity swimming costume?

At the beginning of your pregnancy you’ll be fine with a regular swimsuit or tankini, however as the months progress and you become bigger, you’ll likely find you need something more.

Maternity swimming costumes are made to grow with you so they won’t feel tight or restrictive and some designs are also meant to be worn after baby arrives, while you’re nursing.

How to choose a maternity bathing suit

The most important feature to look for in a maternity bathing suit is good stretch in the fabric. This will enable the swimsuit to grow with your bump and of course, as your pregnancy advances, you’re going to go to the loo more as baby presses against your bladder, so you want something you can pull on and off easily.

Look for adjustable straps or ties at the shoulders so you can tailor the fit to your stage of pregnancy and the level of comfort needed. Extra details could include ruching at the sides – the ‘pleats’ stretch over your stomach as it grows, low cut to the legs – you don’t want the bottoms riding up as you get bigger, an adjustable tankini top that can be worn long or short, and fold up/ down tankini bottoms.

Where to buy maternity swimwear in the UK?

When looking for maternity swimwear then high-street stores such as Marks & Spencer, Next and H&M can often be good places to start. Likewise supermarkets, such as Tesco, Asda and Sainsbury’s, often include maternity swimsuits within their summer collections.

We found the swimsuits featured in our roundup at:

  • Amazon
  • Asos
  • Boohoo
  • Decathlon
  • JoJo Maman Bébé
  • La Redoute
  • Long Tall Sally
  • Mamalicious
  • New Look
  • Seraphine
  • Shein
  • Speedo  
  • Very

How much are maternity swimming costumes?

Both the high street and specialist maternity labels do various swimwear pieces, so you'll find a selection in your budget, whether that's less than £20 or closer to £100.

If you look at sites such as Shein, Boohoo or some of the supermarket brands such as George at Asda, you can get a maternity swimming costume for around £15.

Can you wear a regular swimsuit while pregnant?

A regular swimsuit will generally be fine for early pregnancy, however for most of us a maternity swimming costume is definitely a vital item of clothing for summer and rising temperatures, whether we’re going on holiday or not.

Many women see significant changes in their size and shape during pregnancy and maternity swimwear is made with this in mind so it's worth investing in a maternity piece to ensure you're comfortable and your bump is properly supported.

What size maternity costume should I buy?

Maternity costumes often have extra give and flexibility in the material and features, so you should be fine to buy the same size as you bought before you were pregnant.

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