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Olaian 100, Long-Sleeve Anti-UV Surf T-Shirt, Kids'

Sale price: $12.99 Regular price:

Kids' UV-resistant long-sleeved T-shirt for sun protection, even in the water, and to reduce irritation from skin coming into contact with the board. Close fit for greater stability in the waves.

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Sale price: $12.99 Regular price:

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Model: 8526436

Product Features

A photo of the Olaian 100, Long-Sleeve Anti-UV Surf T-Shirt, Kids' in use

Olaian 100, Long-Sleeve Anti-UV Surf T-Shirt, Kids' | Developed by our design teams for sun protection when surfing and bodyboarding. Beginner level. Water over 72°F.

Kids' UV-resistant long-sleeved T-shirt for sun protection, even in the water, and to reduce irritation from skin coming into contact with the board. Close fit for greater stability in the waves.

Sun protection

UPF50+ fabric. Long-sleeved. Blocks at least 95% of UV rays, even when wet.

Stays in place in the waves

Loop to connect the bottom of the T-shirt to boardshorts.

Irritation reduction

Tight-fitting cut, prevents rubbing against the board. 1-hour sessions.


84% of the component is made from recycled polyester

Easy to maintain

The textile mesh prevents grains of sand from getting stuck.

Product Customer Reviews

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263 Reviews
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Olaian 100, Long-Sleeve Anti-UV Surf T-Shirt, Kids',royal blue
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Nice and soft with added sun protection.

Bought this for my child who is fussy and had no complaints. Material was soft and didn’t cause discomfort or marks. Sizing runs a little small compared to other brands.

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Good product but small fit- size up for your kids

I purchased this shirt for my boys, who are 3y1m and 5y9m, tall and athletic looking. I purchased hoping to get a couple of seasons out of the shirts, so bought a 4-5 for my 3 year old and size 8 for my 5 year old. The shirts will probably fit for this summer and that's it. Highly suggest sizing up a size for their current size and two sizes if you want more than one summer out of them. They're a slim fit, not sure how they'd go on stocky kids. Nice shirts, but small fit.

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14 ans for a 9 year old?!

The wearer reports it is a bit tricky to remove when it's wet, however, it is cheap and cheerful, dries quickly and gives a bit of protection during adventurous wet activities.

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Easy for kids good quality

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Small UK fit

Great, product and great price for use in the pool, sea etching my daughter loves the colour! My only grip is they come up smaller then usual UK sizes. I've found the same with the adult clothes, buy the next size up, simple.

UV tshirt good for a year

Within 2 years started seeing white dot dot things on the shirt. Disppointed of such quality from decathlon

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Excellent fit and comfort.

Very comfortable.

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Olaian sport shirts

Comfortable for my swimm wear

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Hi Tseu Ghee,

Thank you for taking the time to write us a review regarding our product.

In Decathlon, we believe that to get this kind of information from our users is the best way to improve what we are doing. We are glad that you are satisfied with our products :)

Do check out more variety of our products at

We hope to be able to serve you again and see you around in Decathlon! :)

Sport on safely!


Digital Interaction Relay

Bad purchase

The fabric and strings started to frail.

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Hi Mr Vignesh Waran,

Thank you for purchacing our product for beach wear, my name is Ali from Olaian Water Department in City Square Mall. I'm sorry to know that the fabric and strings started to frail, please come to Decathlon City Square Mall for a 1 to 1 exchange on the t-shirt.
There is two brands that is for swimming they are Nabaji and Olaian, Nabajii are meant for chlorine water and Olain are meant for salt water, for both product are recommended to be rinse with running tap water after use to prevent chlorine to eat up on the material.
I'm looking forward to met up with you and talk more about the product and other selection.
Yours Sincerely
детска тениска за сърф

бързо съхне, предпазва от изгаряне, доволна съм от продукта.

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Струва ми се малко висока цената

Само една секция, долната страна е гумена с риск от пускане при допир с пясък, при излизане от морето, цвета е готин и е лек, като тегло

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Spokojenost, splnilo účel...

... jen nevím k čemu jsou dobré tak dlouhé rukávy.

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Prima koupací tričko pro děti

Pohodlné koupací tričko pro děti s citlivou pleti, idealni k mori, bazenu, atd. Rychleschnouci, prijemny material. Neni pak nutno dite tolik mazat opalovacim kremem plnym chemikalii.

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UV triko pro děti

Maximální spokojenost, využili jsme na 100%.

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Size Guide

Size Guide Visual

Additional Product Information


Main fabric

  • 85% Polyester cationic
  • 15% Spandex

How to choose your uv protection t-shirt (part 1)

All of our UV-resistant T-shirts are UPF 50+, i.e. they have the maximum level of sun protection. The choice between them will therefore be made based on the length of the sleeves and will depend on what it will be used for. The constraints are greatest for surfing, so we decided to build our range primarily for surfing. For surfing, the choice will be made according to the duration of your sessions: 1 hour, 2 hours, or 3 hours.

How to choose your uv protection t-shirt (part 2: according to the duration of the session)

1 hour: Occasional activity. You can choose between a loose fit (priority to ease of dressing and comfort when dry) or a fitted cut (priority to comfort when wet). A loop system to connect it to the shorts ensures the stability of the product. 2 hours: Regular activity. Comfort when wet is enhanced by the seamless panels under the arms and the drawstring, which further increases stability. 3 hours: Intensive activity. Additional warmth to help you stay in the water for longer.

Uv protection even when wet.

The fabric of this UV-resistant product blocks at least 98% of UVB radiation and 95% of UVA (UPF 50+). This guarantees effective protection from the sun. It can be used both in and out of the water, for water or water sports. The density of the textile fibers filters out UV rays, for long-lasting protection, even after washing.

What does upf 50+ mean?

UPF is a sun protection factor (Ultra Violet Protection Factor) and is standardized worldwide. It defines the protection level of a fabric and more precisely the proportion of UV rays it lets through. To meet the standards, it must block at least 95% of UV rays. UPF 50+ means that the fabric blocks at least 95 % of UVA and 98 % of UVB rays.

Reduced chafing

This UV-resistant T-shirt helps limit rubbing and chafing due to contact with the surfboard or bodyboard. It can also be used under a wetsuit to limit chafing, particularly around the neck and armpits. Reduced chafing from paddling movements has been proven for sessions of 1 hour. If you plan to surf for more than 1 hour, the UV top 500 will be a more suitable choice with its seamless panels under the arms.

Support system

This UV protection top has a loop at the front to attach the cord of your swim shorts to stop the top from riding up while you surf. This solution is recommended for sessions up to 1 hour. For more than 1 hour, we recommend that you choose the UV 500 top, which also has a drawstring at the hips to ensure better stability. Unwanted riding up of the top could cause irritation to the lower abdomen.

Warmth and wind

The minimum water temperature recommended for the use of this UV-protection T-shirt is 72°F. Air temperature may increase or decrease this recommendation. Our thermal models (over 2 hours) are made of either fleece, neoprene or both. The presence of wind can have an impact that can be uncomfortable as soon as the wind exceeds 9 mph: In this case, choose a model with neoprene.

Multi-water sports anti-uv t-shirt

Our UV tops are designed to meet the needs of the most demanding surfers. Our design choices also make them compatible with other water sports such as swimming, kite surfing, windsurfing, wakeboarding, waterskiing, sea wading, or SUP (stand-up paddleboarding).

Protect the little ones!

Young skin is very sensitive to the sun as kids' defense systems are established after the age of 3. With identical exposure, the effects of the sun are 2 to 3 times stronger on a kid than on an adult. It is therefore important to protect them effectively.

Behavior when in the sun

Although this T-shirt provides protection from the sun, phenomena such as reflections (from the water, sand, etc.), heat, time of day, etc., must be taken into account. Wearing this T-shirt does not exempt the wearer from adopting suitable behavior: Wear sunglasses, wear a hat or cap, regularly apply an appropriate sunblock, drink regularly, etc.

Sun protection guide

What is the olaian brand?

OLAIAN, DECATHLON'S SURFING BRAND Based in Hendaye, in South West France, OLAIAN is Decathlon's surfing brand. In our offices at the water's edge, we can design a sun-protection top and then on the same day go surfing and test it to check that it stays in place in the waves and is comfortable and durable.

A 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 has voluntarily opted to apply this environmental labeling scheme. For more information, visit:



Product testing

Developed and tested by our design teams in Hendaye, France. The components used for this product are laboratory-tested to ensure the best possible quality and durability.

Superior quality. Unbeatable prices.

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

Decathlon makes the difference
  1. product-research

    Research and development

    delivers high-quality cost-effective products

  2. State-of-the-art production processes

    minimize manufacturing costs

  3. Optimized supply chain

    reduces retail prices

  4. laptop-checkout

    Minimal retail footprint

    lowers overhead and indirect costs


Size Guide Visual