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Short-Sleeve UV Rash Guard Surfing T-Shirt, Men's
Men’s UV-resistant short-sleeved T-shirt for protection from the sun, even in the water, and to limit irritation when in contact with the board. Loose fit makes it easy to put on.
Free shipping over $49
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.
Product Features

Irritation reduction
Reduces rubbing against the board. 1-hour sessions.
Stays in place in the waves
Loop to connect the bottom of the T-shirt to boardshorts. Support in waves.
Sun protection
UPF 50+ fabric. Sun protection even when wet. Blocks at least 95% of UV rays.
Easy to maintain
The textile mesh prevents grains of sand from getting stuck.
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Product Customer Reviews

Comfortable and breathable
Comfortable and easy to wear
Value for money
Because I wore it for snorkeling in Kenting and only wore it once, so I don’t have any special memories. But basically it’s OK.
A must have wear for your water activities, it is light and it dries on the go.
Nice product
Little price
Good product
Worthful product
Its good for swimming, having low resistance in swimming
Very good and comfortable wear
Good quality T-shirt, excellent product for sports
Displacement when doing yoga
Very breathable
Good product
Size Guide

Additional Product Information
Composition
Main fabric
- 100% Polyester cationic
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 should 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 should 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 (prioritizes ease and comfort when dry) or a fitted cut (prioritizing comfort when wet). A loop system to connect it to 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.
Uv protection even when wet.
The fabric of this Olaian anti-UV 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 fibers filters out UV rays, for long-lasting protection, even after washing. Chlorine-resistant.
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 protection T-shirt reduces friction with the surfboard or bodyboard. The loose fit of the T-shirt makes it easier to put on and is more comfortable when dry. Choose the fitted cut of the 100 or 500 top if you prefer comfort when wet or wear it under a wetsuit. Limitation of irritation has been proven for sessions of 1 hour. If you plan to surf for more than 1 hour, the 500 UV top will be a more suitable choice because of the seamless panels under the arms.
Support and stability in the waves
This UV protection water T-shirt 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 top 500, which also has a drawstring at the hips for 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 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, kite surfing, windsurfing, wakeboarding, waterskiing, sea wading, or SUP (stand-up paddleboarding).
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 appropriate precautions: wear sunglasses, wear a hat or cap, regularly apply an appropriate sunblock, drink regularly, etc.
Sun protection
https://www.olaian.fr/conseils/la-protection-solaire-en-surf-tp_3890
Determining the environmental impact of our products
The environmental impact of the product is calculated over its entire lifecycle 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: http://sustainability.decathlon.com/
What is the olaian brand?
Olaian, Decathlon's surfing brand Based in Hendaye, in southwest France, Olaian is Decathlon's surfing brand. In our offices at the water's edge, we can design a UV-protection T-shirt and then on the same day test it directly in real usage conditions.
Origin
Imported
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
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Research and development
delivers high-quality cost-effective products
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State-of-the-art production processes
minimize manufacturing costs
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Optimized supply chain
reduces retail prices
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Minimal retail footprint
lowers overhead and indirect costs

Short-Sleeve UV Rash Guard Surfing T-Shirt, Men's
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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.
