The 6.5 mm wetsuit becomes the best option during the coldest months of the year, especially for those who surf in cold water or spend long sessions in the sea.
According to Mauro:
“During peak winter I use the 6.5 mm, and in summer the 5.4 mm. There are sessions that last between 2 and 3 hours, and we don’t want to be suffering from the cold. I prefer to maintain a stable body temperature throughout the entire session.”
Compared to lighter options like the 4/3 wetsuit, the 6.5 mm offers greater thermal protection, allowing for longer sessions and better performance.

One of the biggest myths about thick wetsuits is that they limit movement. However, new materials have significantly improved elasticity, even in wetsuits designed for winter.
“Even though they are thick, they adapt well to the body. They are easy to put on and take off, and the flexibility is very good for a wetsuit of this thickness.”
For a photographer or any surfer, mobility is essential both for swimming and diving, similar to the demands of a wetsuit for swimming in challenging conditions.
A hooded wetsuit is essential in extreme cold conditions:
“It is essential: it protects us from the cold, the wind, the sun, and even from impacts.”
In addition to retaining body heat, it protects sensitive areas such as the ears, which is crucial during long winter surf sessions.

Wetsuit buoyancy: performance in the water
Buoyancy is a key factor in any wetsuit. The greater the thickness, the higher the buoyancy, which directly influences performance.
“We float more, swim faster, and stay warm, which improves performance. It’s also useful for resting.”
Although it requires more effort to dive, it does not represent a significant problem for experienced users.
Wetsuit durability in extreme surf conditions
The best surf sessions, and the best photos, usually happen in critical zones.
“The rocks are very sharp, especially in places like Ericeira. The thickness of the wetsuit protects us from cuts and gives us confidence to enter critical areas.”
A good surf wetsuit not only provides warmth, but also durability and safety.

Warmth and comfort: essential in a winter wetsuit
If there is one feature that defines a good winter wetsuit, it is the combination of thermal comfort and overall comfort.
“I choose warmth and comfort. It keeps you comfortable.”