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Romane 1-Piece Maternity Swimsuit

Sale price: $10.00 Regular price: $19.99

Do you want to swim during your pregnancy? The space around the belly means this 1-piece swimsuit will grow with you, and it's guaranteed to be easy to put on with its U-shaped back.

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Size: Select a size
Size Guide

This product runs small

Sale price: $10.00 Regular price: $19.99

Free shipping over $35

Final Sale: No returns or exchanges

Free returns

Free pickup

San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8335704

Product Videos

Product Features

A photo of the Romane 1-Piece Maternity Swimsuit in use

Romane 1-Piece Maternity Swimsuit | Our design teams have developed this 1-piece swimsuit for the future mother who wants to continue swimming during pregnancy.

Do you want to swim during your pregnancy? The space around the belly means this 1-piece swimsuit will grow with you, and it's guaranteed to be easy to put on with its U-shaped back.

Chlorine resistant

Up to 100 hrs of use: recommended for occasional use.

Easy to put on

Wide straps and U-shaped scoop back make it easy to put on.

Anatomical design

Comfortable seams, suitable for 9 months of pregnancy.

Product Customer Reviews

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1576 Reviews
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Romane 1-Piece Maternity Swimsuit,black
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Very comfy

super comfy swimsuit for the growing bump. I am usually a size 8/10 and I bought a M/L. I thought it would be too big but it isn't

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Maternity swimming costume. Excellent

I bought these for my daughter and she loves them. I went for one size up as directed on website. Great style value and costume. Got in two colours

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Great costume to wear when pregnant

Really pleased with this purchase. The coral band helps draw your eye away from the growing belly. The U shape back ensures ease if getting in and out of the costume - a shape I've never used before. Straps stay firmly up when swimming and doing turns. Super impressed with this and there is plenty of room for it to grow with me over the next few months.

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My new swimsuit

Good fit lovely and comfortable

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Very good quality!

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I’m in love….

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Poor fit. Odd sizing

Not sure why recommended to size up. I’m usually a 10/12 so I bought a 12. It was huge and I’m 28weeks! Will be retuning.

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Great maternity costume

Really comfy and supports you in all the places you need. This swimming costume grows with your bump and I’m loving swimming during my pregnancy. Love the pink band as it helps you feel like you have a slightly more flattering figure as your body quickly changes with each swim!

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Quality of fabric is bad

I used this item only few times and it’s already fabric is ripped... its not even 6 months.. i am returning item now.. and planning to ask refund or exchange


Great fit and feels great

Not a maternity swimsuit

Collected order today and it's just a normal swimming costume. I'm a size 10 but 25 weeks pregnant so needed bump room - have ended up buying size xl!

Great fit, ok material

I'm 5'7", size 12 and 19 weeks pregnant and ordered a medium which fits really well. It seems there is lots of give in the rouched material around the middle for my bump to grow. There's an elastic panel under the bust which is comfortable and not too tight and is supportive enough for my growing bust, and the material doesnt pull down like some costumes! The only downside to this costume is the material is not as good and quick drying as more expensive costumes (like Zoggs or Speedo), but for the price I wouldnt have expected it to be.

Fits well

I'm 5'6" and this swimming costume fits well, neither pulling up or down which can often be the case with these things when combining a large bust and long body, never mind a bump as well. Material stays put where it should do, although I did find myself 'tucking myself in' a little around the bust area as there's not a lot of support there. Plenty of room for a growing bump...I wore from about 32 weeks to 37 weeks.

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Good quality, nice and comfortable. I'm so happy of this product !!!

Great value, comfortable and attractive design

I'm 31 weeks pregnant, tall at 5'9" and was worried I wouldn't find a maternity swimsuit to fit me. I ordered this online, in my usual size and I have been so pleased with the product. It looks good and fits so comfortably around my bump.

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Size Guide

Size Guide Visual

Additional Product Information


Main fabric: 80.0% Polyamide, 20.0% Spandex ; Lining: 100.0% Polyamide

Your activities

Swimming for beginners: beginner swimmers who are starting to swim and need ease and comfort. Above all, she is looking for a water-based physical activity for its well-being and health benefits. For her, NABAIJI offers a wide range of swimwear that allows her to swim with products suited to swimming but that also meets anatomical requirements.


U-shaped back: A swimming swimsuit should focus above all on comfort, to allow you to perform your movements with ease, without discomfort or pain. That's why it's important to choose the cut of the back of your swimsuit carefully. A U-shaped back makes it easy to put on and avoids tan lines on your back if you swim outdoors.


Material: 80% polyamide / 20% spandex. Chlorinated water can be harmful to swimsuits that are used repeatedly in swimming pools. The spandex fiber that gives the material its stretch and therefore makes it comfortable also becomes fragile when in contact with chlorine. If you swim occasionally, this material will be fine for you. If you swim regularly or intensively, opt for a 100% polyester material.

Use restriction

Not recommended for use on slides.

A score to compare the environmental impact of products

The environmental impact of the product is calculated over its entire lifecycle with different indicators. An ABCDE score is provided to enable easy identification of the most environmentally-friendly products when comparing products of the same type (T-shirts, pants, backpacks).Decathlon chose to apply this voluntary environmental labeling system.Web: Sustainability.decathlon.comVideo:



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For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.

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Size Guide Visual