Men's R1 Yulex Regulator Front-Zip Full Suit 3/2.5mm Size M No water entry (for the sake of caution, this is based on personal perception) There is wear on the left side of the seat from use, but no tears or water entry. This is a used item that can be used without any problems. A high-performance wetsuit made of 3mm/2.5mm thick Yulex natural rubber 85% / synthetic rubber 15% (polymer content) with a recycled liner, and is neoprene-free. Is it ideal for water temperatures of 21°C to 23°C?