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Leony+ 1-Piece Swimsuit Girls'
1-piece girls' swimsuit with racer back that stays in place while swimming
Free shipping over $49
Free returns
Free pickup
San Francisco, 735 Market St. Options
Select an available color and size to see options.
Product Videos
Product Features

Freedom of movement
Y-shaped closed back with wide straps.
Coverage
Average cut, without being too open, for good freedom of movement.
Chlorine resistant
Up to 100 hours of use: recommended for occasional use
Stretchiness
Soft and elastic material for maximum comfort.
Questions & Answers
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Product Customer Reviews

I ordered this swimsuit for my 6 year old and read it ran small, so I ordered the size for 8 year olds. It was still way too small... The size for the 8 year olds is more for a 4 year old. Not sure what this company is using for sizing kids, but they are WAY off. The suit itself, was made well, outside of the sizing issue.
Get at least 1-2 sizes up for the age
This is a great swimming costume, pretty well made and designed for the price paid for it. We had to go several sizes up to get a costume that fits my child. She is a tall 9 year old and in Decathlon is an age 14 already. I bought this costume quite recently, but what I would say is that there is already some wear and bobbling around the buttock area of the costume. I’m not sure if it’s wear from swimming or washing or even sitting on the side of the pool, but it seems to be happening quite soon compared with other brands. Anyway, other than that this costume serves a purpose at a competitive price.
As everyones else, after checking the size chart, I bought a size 6 for my 5 years old. It fit perfectly my 2 years old... What a joke!!!
Michela
Bought age 10y for my slightly small 10 year old. It’s far too small for her. Too small for my average sized 8y old too. I’ve given it to a 4y old and it looks like it’ll fit perfectly.
I ordered the size 10ys . It certainly won’t fit a 10yrs. It looks more like for a 3 years old. Had to return it. Very disappointing.
Good for swimming with school and bright but had to go 2 sizes bigger for my 8year old.
Attractive swimsuit, but the sizing is atrocious. My tall 4 year old has already outgrown the size 10 I bought her! Sort the sizing out Decathlon. She's usually 2 sizes bigger, but 6+ sizes out is ridiculous.
Bought an age six for my very skinny six year old, it just fits my two year old, absolutely ridiculous sizing!
Dear Amanda,
Thank you for your recent feedback. We are sorry to hear about the issue with size of our swimsuit. The age size is the only advice on the product as children may vary a lot from each other. From our experience we usually recommend to go with two size up.
We hope this issues will be reduced by our new collection models starting to arrive from next spring season. They will be made based on new size template, more up to date with the current market trends.
Please do not hesitate to return your swimsuit to the local store or use the online procedure for full refund or exchange.
Once again apologies for any inconvenience caused.
Regards,
Kornel - Water Sports Commercial Leader
The reason I gave average is the quality is great but the sizing is very small, ordered age 6 for my 3 year old and it’s still too small! And she isn’t a big child
Bought this in size age 10 for a small 9yr old, It is ridiculously small, I would say this would fit a 5yr old. Sort your sizing out, now I need to go shopping again :(
Tried an age 10 swimsuit on my 8 year old, it was tiny! Got an age 12 which is still stupidly small. Please take this off sale and re do the sizes to stop wasting people's time. Should have read reviews first!!
I bought this swimsuit in size 8 yrs for my 5 year old daughter with the idea of her growing into it. It was too small! My daughter is not overweight, just slightly taller than average.
This is very small in size. I have just bought an age 12 one for my small 8.5 year old. It won’t last much longer.
As others have already noted, the sizing of this swimsuit is ridiculous. Having considered other reviews, I ordered a size 8 years for a just turned 5 year old - it's probably more suited to a 3/4 year old. While Decathlon does provide sizing information, the size 8 years (125-132cm) swimsuit is 4 cm shorter than the suit (age 4-5 years, 104-110 cm) it was supposed to replace. It's a shame as the suit is a nice design but it's impossible to order with any confidence.
Size Guide

Additional Product Information
Composition
Main fabric: 82.0% Polyester cationic, 18.0% Spandex ; Lining: 100.0% Polyamide
Your practice
Beginners swim: young beginner swimmers who are starting to swim and need ease and comfort. For her, Nabaiji offers a wide range of swimwear that allow her to swim with products suited to swimming, but that also meet anatomical requirements
Style
Y-shaped back: above all, a swimsuit should focus on comfort to allow you to move with complete freedom, without restriction or pain. That is why it is important to choose the cut of the back of your swimsuit carefully. A Y-shaped closed back swimsuit is ideal if you have a larger bust.
Material
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.
Score to compare the environmental impact of products
The environmental impact of the product is calculated over its entire lifecycle and with different indicators. An overall score (ABCDE) is attributed to help you easily identify the products with the best environmental performance by comparing products of the same type with one another (T-shirts, pants, backpacks, etc.).Decathlon chose to apply this voluntary environmental labeling system.Website: sustainability.decathlon.comExplanatory video: https://youtu.be/8t63KkRwn_8
Storage instructions
Store in a dry place.
Origin
Imported
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Leony+ 1-Piece Swimsuit Girls'
Your location: City, ST
Please enter a valid city with state or zipcode. Example: San Francisco, CA or 94101
Order online for
Heavy products return policy
If you return a product you will receive a refund for the purchase price plus any applicable sales taxes, less any non-refundable charges.
Decathlon will cover all shipping costs associated with your return except for items excluded from our return policy such as bikes, basketball hoops, snowboards, surfboards, tents, and other larger / heavier items.
Return costs for heavy products:
Weight Thresholds | Shipping within California | Shipping outside of California |
---|---|---|
> 9 lbs | $20.00 | $25.00 |
> 30 lbs | $50.00 | $65.00 |
> 100 lbs | $100.00 | $125.00 |
> 200 lbs | $200.00 | $230.00 |
If you return a product at any of our store locations, we will gladly help you find the best alternative product or refund you on the spot.
