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Olaian Men's UV Protection UPF 50+ Long Sleeve Rashguard
Long-sleeved anti-UV T-shirt to protect you from the effects of the sun, even in the water. It also reduces irritation from contact with the board. Loose fit for ease of dressing and movement
Free shipping over $49
Free returns
Free pickup
San Francisco, 735 Market St. Options
Select an available color and size to see options.
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Product Customer Reviews

The shirt protects by avoiding the first sunburns.
Best for swimming! Sun protection is real. Highly recommended.
Good product
Very good product
Very useful stuff and very sporty too
Best
Perfect
Warm complexions
Size S is too wide. Good UV protection
It's OK
Very good shirt, very comfortable for swimming in the sea, pool and wearing in water games and on the beach. It dries somewhat quickly, it allows you to save a little body heat. I would buy it again
Quality and price good for swimming
Comfortable, extremely protective against UV (only reason why I bought it). Dries very quickly. Very cool when wet/humid, but not annoying. From dry, much less hot than I expected, in a good way. In water, no idea of the thermal potential because it was tested in very hot waters.
Excellent
Additional Product Information
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.
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 1h, the 500 UV top will be a more suitable choice thanks to the seamless panels under the arms.
Support system
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 1h. For more than one 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 22°C. Air temperature may increase or decrease this recommendation. Our thermal models (over 2h) are made of either fleece, neoprene or both. The presence of wind can have an impact which can be uncomfortable as soon as the wind exceeds 15 km/h: In this case, choose a model with neoprene.
Multi watersports 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 watersports such as swimming, kite surfing, windsurfing, wakeboarding, water skiing, sea wading or SUP (stand up paddle boarding).
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 sun cream, drink regularly, etc.
Origin
Imported
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

Olaian Men's UV Protection UPF 50+ Long Sleeve Rashguard
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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.
