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Kids Long-Sleeve Anti-UV Surfing Top

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A photo of the Kids Long-Sleeve Anti-UV Surfing Top in use

Kids Long-Sleeve Anti-UV Surfing Top
Developed by our design teams for sun protection when surfing and bodyboarding. Water above 22°C and no wind. Sessions up to 3 hours (warmth).

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. Fleece interior provides extra warmth.

Reduced chafing

Tight-fitting cut and seamless panels under the arms. 3-hour sessions.

Thermal insulation

Fleece lining. Better insulation from cold except when wet in windy conditions.


Drawstring and loop at the bottom of the top to help keep it firmly in place.

Sun protection

UPF 50+ fabric. Long-sleeved. Blocks at least 95% of UV rays, even when wet.


Product Reviews

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6 Reviews
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Love it

Good quality. The size a bit small, recommend to get 2-3 size bigger, maybe?

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Too tight

Size is relatively small and too slim fit. My boy could hardly wear this pullover swimming top even I bought 2 sizes up (6 years old but wear a 9-10 years size). It would be more user friendly with a back zip up and if the cutting should be adjusted.


Dear Wendy,

Firstly, we apologies for the uncomfortable product experience created by our product.

We take great care to ensure that important matters such as this are properly managed. 

The issue has been already passed to the production line and we will keep striving for the best on the quality issue.

In light of this, you are welcome to exchange or refund in any of our 5 stores, which we hope will be acceptable to you.

Please contact me should you have any further cause for concern.

Thank you so much.

Stay healthy. 


Eric Cheung

Decathlon Hong Kong Watersports Team (Service)

Size is relatively small

Size is relatively small. My 8 year old students need to buy size for 12 year old. My 4yo students need to buy size for 6yo. Hard to pull shirt over the head.

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Thank you for providing your valuable feedback regarding the product.
We apologize that you were dissatisfied with the product. 

The product is meant for people who like to go the beaches for doing water sport activities like surfing , stand up paddling or sailing. The shirt is tight fitted UV resistance top which reduces irritation from skin while coming into contact with the surfboard and the water. We have sizes available from 4 years to 14 years. Different body types have different fittings. While you are purchasing a UV protected tight fitted shirt, just ensure you buy the shirt which fits exactly the body type and the kid is able to rotate his hands in 360 degree angle without any air pockets. 

I hope I am able to help you with the product understanding and technicalities. 

I am available for any further assistance. See you soon in any our stores. :) 

We make water fun !
Swimming Sport Leader

Able to keep warm for the kid during swimming lesson. The collar is a bit narrow.

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Hi Koh!
Thank you for taking time to review our Decathlon product.
We glad that you enjoyed our Kids Long Sleeve Thermal UV Protection Top Surfing T-Shirt PTB (8521780)

Your feedback is crucial for our product improvements and therefore, rest assure that i will be highlighting this issue to my product team immediately with regards to the narrow collar.
Just to share with you, we do offer a more technical product that comes with a Neo-Thermal to protect give more warmth to the body and UV Protection at the same time.
Model: Top Neo Thermal SS Jr Blue (8486005)
Do visit us at any experience stores near you and approach any of our friendly sports advisor for more information.
Looking forward to seeing you soon!

Muttakin (Takin) 
Surfing Sports Leader

True to size, lovely and warm, well made. Definitely recommend this product.

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Children's Long Sleeve Thermal UV Protection Top S

Ordered a 4-5 for my 3 year old and glad i did as it comes up small, should have really ordered the 5-6 as not a lot of room to grown into. Lovely and does the job at keeping him warm during swimming.

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Product information


Main fabric

  • 9% Elasthane
  • 91% Polyester

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 practice. 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 practice. Comfort when wet is enhanced by the seamless panels under the arms and the drawstring which further increases stability.3 hours: Intensive practice. Additional warmth to help you stay in the water for longer.

Warmth and wind

The minimum water temperature recommended for the use of this UV-protection T-shirt is 22°C if it is worn on its own. Max. duration: 3 hours.This top is made of fleece which insulates from the cold and helps avoid shivering when you enter the water. Please note that the presence of wind will have an impact and can cause discomfort when wet, making you feel colder. In windy conditions it is therefore recommended to choose a top with neoprene.This top can be worn under a wetsuit

Uv protection even when wet

The fabric of this OLAIAN 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 nautical sports.The density of the textile fibres 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 standardised 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 UVB and 98% of UVA rays.

Reduced chafing

This thermal top 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. We have added seamless panels under the arms to limit irritation due to paddling movements. Our test protocols confirmed that irritation was indeed limited during three-hour sessions.

Support system

This Tribord UV-resistant top has a drawstring at the hips. This lets you tighten the top so that it stays firmly in place. It has also been designed so that the drawstring of your boardshorts can be attached to it to stop the top from riding up while you surf.

Multi water sports uv protection 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, kitesurfing, windsurfing, wakeboarding, water skiing, sea wading or SUP (stand up paddle boarding).

Protect your little ones!

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

Behaviour 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 behaviour: wear sunglasses, wear a hat or cap, regularly apply an appropriate sun cream, drink regularly, etc.

Sun protection guide

What is the olaian brand?

TRIBORD surfing products are becoming OLAIAN, the new Decathlon brand dedicated to surfing, bodyboarding & skimboarding. Gradually, the branding of all our surfing products will be replaced. This is why your product may have a different logo to the one in the picture illustrating the product.

Score to compare the environmental impact of products

The environmental impact of the product is calculated over its entire life cycle 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, trousers, backpacks, etc.).Decathlon chose to apply this voluntary environmental labelling scheme.For more information, visit:

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