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JR Top Neothers GXB

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Model: 8486005

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Product Features

A photo of the JR Top Neothers GXB in use

JR Top Neothers GXB is designed for sun protection when surfing and bodyboarding. Water over 22°C. Session length up to 3 hr (Thermal input even in the wind)

UV-resistant T-shirt with neoprene to protect children against the sun, even in the water. This top also provides warmth and limits irritations when in contact with the board.

Sun protection

UPF 50+ fabric. Sun protection even when wet. Blocks at least 95% of UV rays.

Stays in place in the waves

Loop to connect the bottom of the T-shirt to boardshorts to keep it in place.

Irritation reduction

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

Thermal insulation

Neoprene front and back. Fleece neck and sides. Warmth even in the wind.

Quick drying

The water-repellent treatment limits water absorption and speeds up drying.

Product Customer Reviews

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JR Top Neothers GXB,galaxy blue
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Perfect for swimming lessons in a cold pool. We ordered a size 2 years old than my son which fits perfectly as his age came up very small.

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Short sleeve surf top

Fantastic top, ideal for swimming lessons, prompt delivery

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Great thermal top

Bought for son to keep him warm in swimming lessons. It works really well, keeping him warm for the whole lesson.

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Entra agua

Entra agua

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Se pidió y se recibió sin ninguna incidencia

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Bastante bien

Al nano no pasa frío, pero la talla no coincide son muy pequeñas

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Perfecto para natacion

Compre una talla 4 y es muy pequeño, tuve q cambiarlo por la talla 6, siendo mi hijo muy delgado, pero para q este calentito en natacion es perfecto,.

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Cómoda para natación para no pasar tanto frío.

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Bueno y gordito talla para 140cm perfecta pero le pica y roza la costura del cuello

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Perfecta. Le abriga, pero no le agobia, y está cómoda.

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Calidad/Precio excelente

Calidad/Precio excelente

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Todo perfecto

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Camiseta termica

Muy buen producto

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Buena opción

Buena calidad

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Cumple su función

Camiseta muy adecuada xa el uso que tiene previsto! Es justo justo de la talla que indica, quizá un poquito justa. Por lo demás perfecta!!!

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Size Guide

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Additional Product Information


Main fabric

  • 90% Rubber - Chloroprene - Neoprene
  • 10% Polyamide

Sleeve 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 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 72°F if it is worn on its own. Max. session length: 3 hours. This top has neoprene on the front and back to provide warmth even in windy conditions. This top can also be worn under a wetsuit.

How does neoprene work?

By trapping a thin layer of water around the body, the neothermal top works in 2 ways: 1. the trapped water gradually reheats 2. heat transfer is reduced. The wetsuit and the thin covering of water form a layer of insulation.


The neothermal top is made of fleece textile and neoprene to ensure better thermal insulation. The neoprene is lined with polyester fabric for added resistance to wear. Neoprene thickness: 1.5 mm. Neoprene is a closed-cell polychloroprene elastomeric foam with trapped nitrogen bubbles that have insulating properties. We test and guarantee the thermal quality of our neoprene materials.

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. UV radiation is filtered by the density of the textile fibers, 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 UVB and 98% of UVA rays.

Reduced chafing

This neothermal 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 3-hour sessions.

Quick drying

The polyester fleece textile is naturally quick drying. An additional water-repellent treatment prevents water absorption to limit shivering in case of wind. It also makes drying easier. The effects of this treatment will decrease after 5 or 6 machine washes; therefore to increase the life of the treatment, use a clear water rinse instead of washing with detergent.

Protect the little ones!

Young skin is very sensitive to the sun as children's 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 child than on an adult. It is therefore important to protect them effectively.

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 paddleboarding).

Behavior when in the sun

Although this T-shirt protects against the sun, phenomena such as reflections (from water, sand ...), 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 block, 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 and skimboarding. Gradually, the branding of all our surfing products will be replaced. This is why your product may have a different logo from the one in the picture illustrating the product.



Product testing

Developed and tested by our design teams in Hendaye, France. The fabrics 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