Men's Surfing 5/4 mm Neoprene Wetsuit with Hood 900.


Our team of designers has developed a wetsuit that is perfectly suited to surfing and bodyboarding in very cold water (7°C to 12°C) for more than two hours.

The warmest and most technical wetsuit in the range with its integrated hood which helps to limit water ingress. Warmth, freedom of movement, quick drying and durability!

Color: BLACK / BLACK / Chocolate truffle
Size: size guide
As this is a tight-fitting product, previous customers have recommended purchasing a size up.


Product benefits

Freedom of movement

Ultra-stretch neoprene. Ergonomic cut. Front zip to free up the back


5 & 4 mm blind-stitched, glued taped neoprene. Must be tight.

Reduced chafing

Underarm insert for comfort. Reinforced knees.

Quick drying

Quick-dry inner lining.

Easy dressing

Special wrist and ankle cuffs make it easier to get hands and feet through.

Technical information

How to choose the right wetsuit (Part 1)

The first selection criterion when choosing a surfing wetsuit is the water temperature. Water temperature varies according to the location and the time of the year. Systematically make sure that the water temperature at your spot corresponds to the recommended temperature range: Warm water above 20°C. Temperate water between 17°C and 22°C. Cold water between 12°C and 17°C. Very cold water between 7°C and 12°C. Visit the site to find out the temperature of your spot.

How to choose the right wetsuit (Part 2)

The second criterion to take into account is the length of your sessions. If your sessions last less than an hour, the 100 models will be suitable. For up to 2 hours, opt for the 500 models and for up to 3 hours, the 900 models.
Compared to the 100 models, the 500 models will be warmer (and more watertight) and more efficient at reducing fatigue (more freedom of movement) and irritation. The same is true for the 900 models compared with the 500 models.
NOTE: the 900 models are easier to put on.

Choose the right size

To make the most of the features of your wetsuit, it is necessary to choose the correct size. A surfing wetsuit should be a very tight fit and there should be no visible folds. When dry, it is perfectly normal to feel like it is too tight, this discomfort disappears as soon as the wetsuit gets wet. If you choose a wetsuit that is too big, folds will appear, you will experience irritation and thermal comfort will be reduced (letting in water).

Return policy

Any doubts regarding the wetsuit size you should choose when placing your order? Returns and exchanges are free at the customer service desk in our stores for a period of 365 days if your purchase is recorded on your Decathlon account. You can also return your wetsuit through the post or at a pick-up point by printing your return form on our website, in: My Purchases. In such a case, you are responsible for the cost of returning the items.


OLAIAN 900 wetsuits are made from 100% ultra-stretch neoprene for thermal comfort and flexibility. The neoprene is lined with synthetic fabric for added resistance to wear. 5 mm neoprene on the torso and 4 mm on the limbs (arms and legs). The flexibility of the 900 range is provided by the super-stretch properties of the foam and the textile.

Hood neck

The neck finish has been developed to limit irritation. According to the sensitivity of the wearer, a UV top can be worn under the wetsuit to reduce the risk of irritation. The application of grease (e.g. Vaseline) in friction areas (neck, underarms, knees) is also recommended if wearing the wetsuit for long periods.

Freedom of movement

The 900 OLAIAN men's wetsuit range offers a style and material specifically chosen to facilitate paddling and fully ease movement.
The entire wetsuit is made from ultra-stretch neoprene.
All the seams are stretch seams.The front zip totally frees up the back during use.

Zip / Integrated hood

The OLAIAN 900 5/4 mm wetsuit features our built-in hood. This design helps stop as much water as possible from getting in during long sessions in very cold water.
The fastening system with a front zip ensures freedom of movement while providing a better watertight seal than a traditional back zip. The zip slider is made of stainless steel to withstand exposure to salt water.

Key pocket

There is a key pocket in the front panel under the zip.

Watertight assembly

The seams are stitched and glued for a watertight seal and durability.
The seams are "blind-stitched", meaning the thread does not entirely pass through the neoprene, preventing water getting through.
To further enhance the watertight seal and durability of the assembly of our 900 ranges, they are fully taped on the inside.
The absence of threads on the inside also avoids irritation and chafing. Patches for comfort and reinforcement are strategically placed on the inside in sensitive areas.

Water stoppers

The ankles and wrists have special cuffs to help stop water getting in. They also help keep the suit firmly in place when using gloves and boots.

Easy adjustment

The zip and hood adjustment systems are designed to be used with one hand. They are big enough to be used with gloves recommended for sessions in very cold water.

Quick drying

The OLAIAN 900 5/4 mm wetsuit has a new inner lining. This enables not only a minimal weight increase in the water but also ultra-fast drying. It can therefore be used several times a day while still keeping a dry feel when put on.

Stay warm for longer thanks to our thermal accessories! Each temperature range has its own outfit...

When we are in the water, we lose more than half of our body heat through our extremities (feet, hands, head). Consequently, here are the recommended accessories:
- in warm water and temperate water (>17°C) => neoprene low booties.
- in cold water (12 - 17°C): High booties (boots) and gloves.
- in very cold water (7 - 12°C): High booties (boots), gloves, hood and hooded top...
Find our entire range of neoprene accessories on the Decathlon website

Multi-watersports wetsuits

Our wetsuits are designed to meet the needs of the most demanding surfers.
Our design choices also make them compatible with other watersports such as kitesurfing, windsurfing, wakeboarding, water skiing, sea wading or SUP (stand-up paddleboarding).

Our actions to reduces the environmental impact of our wetsuits

Our 900 range of wetsuits are made from Limestone, a limestone-based neoprene. The black colour of the neoprene, called Eco Carbon Black, is obtained by recycling used tyres. The glue used to assemble the textile and neoprene, called Aquaglue, is water-based and solvent-free. The dope-dyed yarn process used for the black colour is very water-efficient and environmentally friendly.


To extend the life of your wetsuit and reduce its ecological impact, Decathlon is committed to ensuring that all neoprene wetsuits are repairable and in perfect condition after repair!
You can find our repair products here:
You can also find our repair tips:

What is the OLAIAN 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 wetsuit and test it on the same day by surfing in it to check its thermal comfort.


2 years

Product concept & technology

Product Composition

Foam 100% Rubber - Chloropren - Neopren Main fabric - Outer layer 86% Polyamide, 14% Elasthane Main fabric - Inner layer 51% Polyester, 43% Polyamide, 6% Elasthane


In a dry, well-ventilated place. Avoid heat sources. To extend the life of your wetsuit, do not leave it out to dry in direct sunlight. Machine washing is not recommended.

User Directions

Designed for water between 7 and 12°C. Session length up to 3h.


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.

Maintenance advice

Hand wash

Do not bleach

Do not tumble dry

Do not iron

Do not dry-clean


Men's Surfing 5/4 mm Neoprene Wetsuit with Hood 900.
Men's Surfing 5/4 mm Neoprene Wetsuit with Hood 900.
Men's Surfing 5/4 mm Neoprene Wetsuit with Hood 900.
Men's Surfing 5/4 mm Neoprene Wetsuit with Hood 900.
Men's Surfing 5/4 mm Neoprene Wetsuit with Hood 900.
Men's Surfing 5/4 mm Neoprene Wetsuit with Hood 900.
Men's Surfing 5/4 mm Neoprene Wetsuit with Hood 900.
Men's Surfing 5/4 mm Neoprene Wetsuit with Hood 900.
Men's Surfing 5/4 mm Neoprene Wetsuit with Hood 900.


Customer reviews