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Olaian 100, 4/3 mm Neoprene Surfing Wetsuit, Men's

Sale price: $149.00 Regular price:

This wetsuit offers effective thermal comfort in cold water. Easy to put on, for speed and comfort. Perfect for your sessions up to 1 hour.

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Sale price: $149.00 Regular price:

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Model: 8504033

Product Features

A photo of the Olaian 100, 4/3 mm Neoprene Surfing Wetsuit, Men's in use

Olaian 100, 4/3 mm Neoprene Surfing Wetsuit, Men's | Our team of designers has developed a wetsuit that is perfectly suited to surfing and bodyboarding in cold water (54°F to 63°F) for up to 1 hour.

This wetsuit offers effective thermal comfort in cold water. Easy to put on, for speed and comfort. Perfect for your sessions up to 1 hour.

Easy to put on

Protected back zipper. Long zipper pull.

Freedom of movement

ergonomic design (seamless inserts at the crotch and underarms)


Watertight and durable glued and blind stitched 4 and 3 mm neoprene

Quick dry

Synthetic lining

Product Lifestyle Image Gallery

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Olaian 100, 4/3 mm Neoprene Surfing Wetsuit, Men's,black 

Olaian 100, 4/3 mm Neoprene Surfing Wetsuit, Men's,black 

Olaian 100, 4/3 mm Neoprene Surfing Wetsuit, Men's,black 

Olaian 100, 4/3 mm Neoprene Surfing Wetsuit, Men's,black

Product Customer Reviews

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Olaian 100, 4/3 mm Neoprene Surfing Wetsuit, Men's,black
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Good Wetsuit

The suize guide suggested Size L because of my hip and chest measurements, luckily I ordered size M too, because I could see size L being to large heightwise. I´m 1,73 and size M fits perfectly. Hip was 97 and Chest 85.

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Great wetsuit! 5’7” 175lbs and the Men’s Large fit well!

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Black olaian wetsuit


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Have worn it twice and it's worked fine, pretty much as expected. I'm 5'11" and just under 14 and a half stones and the XL fitted me fine. It felt a little tight lengthwise i.e. pulling down on my shoulders, but both legs and arms were plenty long enough. Only complaint is that there was no key pocket as advertised.

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Quality item.

Good value.

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Returned for exchange

Returned to store for exchange , no problem at all . Staff very helpful

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Good buy.

I'm happy with this wet suit. and I recommend it to anyone who wants to spend a lot of time in cold water.

Poor quality

Not good fit and quality below average

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Even the cold of Newquay Bay wasn't that noticeable in this wetsuit

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Great suit for affordable price

1st use in sea in Brighton in april about 10 degrees. Suit made it possible to go in and stay for 20 or so mins. Head and hands were very cold but body ok. Will buy hood and gloves from decathlon. Cant testify for longevity but very impressed on 1st use

Мнение след проба

След пробата върнах продукта, защото не се прилепяше плътно на задната част на врата и оставаше неприлепнала част на гърба. Това означава, че би влизало прекалено много вода в костюма. Иначе костюмът изглежда солиден.

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Decent wetsuit

Decent wetsuit with a classic look. I'm 187cm 79Kg, MEDIUM fits the best. LARGE is loose in the belly.

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Alles Bestens


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Größe geht gar nicht

Ich bin 187 und wiege 95 kg. Der Anzug in XL war zwar in der Länge richtig, jedoch an den Armen, Beinen und am Rücken viel zu eng. Arme und Beine, insbesondere am Handgelenk und den Fußgelenken, würden massiv abgeschnürt. Wer also keine Size 0 hat, sondern etwas sportlicher ist, dem passen die angegebenen Größen nicht.

Hi Marco!

Schon mal vielen Dank für dein Feedback zum 4/3mm Neoprenanzug von Olaian!

Die Suche nach einem gut passenden Neoprenanzug kann beschwerlich sein, dass wissen wir als passionierte Surfer. Wir bedauern daher, dass dir der Anzug in der Größe XL nicht gepasst hat. Gerade individuelle Körpermaße sind in dem Fall nicht immer zu berücksichtigen.

Dennoch danke für dein Feedback! Durch solche können wir unsere Produkte weiterverbessern und in Zukunft anderen Kunden bessere Hilfestellungen geben.

Wir hoffen dich dennoch weiterhin bei uns als Kunde begrüßen zu dürfen und wünschen dir noch eine schöne Woche!

mit sportlichen Grüßen



Super Preis Leistung

Hält gut warm. Eine Nummer größer bestellt als Konfektion.

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Size Guide

Size Guide Visual

Additional Product Information



  • 100% Rubber - Chloroprene - Neoprene
  • 10% Polyamide

Main fabric

  • 100% Polyamide

How to choose the right wetsuit (part 1)

The 1st 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 68°F. Temperate water between 63 and 72°F. Cold water between 54 and 63°F. Very cold water between 45 and 54°F. Visit the site to find out the temperature of your spot.

How to choose the right wetsuit (part 2)

The 2nd 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. NB: 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). Try it on before you buy it!


This OLAIAN 100 4/3 wetsuit is made from genuine neoprene for improved comfort during use. The neoprene is lined with synthetic fabric for added resistance to wear. Neoprene thickness: 4 mm and 3 mm. The neoprene is made from an elastomer foam with insulating properties. We test and guarantee the quality of our neoprene materials.


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) is also recommended if wearing the wetsuit for long periods. Make sure the flap is always inside the wetsuit to limit the risk of irritation with the zipper and the neck.


Our zippers and fastenings are laboratory-tested in order to ensure an optimal lifespan and good resistance to salt water. We have put the zipper at the back of the wetsuit for more comfort during surf sports (when lying down to paddle).

Watertight assembly

The seams are stitched and glued for a watertight seal and durability. The seams are blind-stitched, which means the thread does not pass through the entire thickness of the neoprene and so prevents water from getting through. The absence of threads on the inside avoids irritation and chafing.

Key pocket

There is a key pocket under the zipper flap.

Anti-chafing design

We designed this product with seamless panels under the arms to limit irritation due to the repetitive paddling movements associated with surf sports.

Stay warm for longer with 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 (>63°F) => neoprene low booties. - in cold water (54 - 63°F): High booties (boots) and gloves. - in very cold water (45 - 54°F): High booties (boots), gloves, hood, and hooded top... Find our entire range of neoprene accessories on our website

Multiwater sports wetsuits

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

What is the olaian brand?

OLAIAN, DECATHLON'S SURFING BRAND Based in Hendaye, in South West France, OLAIAN is Decathlon's surfing brand. In our offices at the water's edge, we’re able to design wetsuits and test them same-day in real conditions



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.

Storage instructions

In a dry, 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.

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