Refers to the thickness of a wetsuit, specifically the neoprene material used. Let's break it down. This indicates the thickness of the neoprene in the core areas of the wetsuit.
The thicker the neoprene, the better it insulates against cold water. A 7mm wetsuit is suitable for. This refers to the thickness of the neoprene in other parts of the wetsuit, such as the arms and legs. The thinner 5mm panels allow for more flexibility and ease of movement. It provides excellent insulation to keep you warm while allowing enough flexibility for comfortable movement during water activities like diving or surfing.