Men's O'Neill Psycho Tech 4/3 mm swimming foam black 5337 (5337-A00)

Wetsuit O'NEILL Psycho Tech 4/3 mm  is a model that uses 4/3 mm neoprene thickness, which makes it recommended for use on significantly colder days. The comfortable temperature range for using this wetsuit is between 8°C - 11°C. 

This model has been enhanced with a 0.5 mm foam thickening, providing even greater thermal comfort, even at low temperatures.

The material used, TechnoButter 3 on the shoulders, arms, shins, and calves, is a feather-light core made of ENVY foam rubber with uniquely improved stretchable and hydrophobic neoprene. On the chest and back, the material TechnoButter 3 Air: Firewall Smoothskin, which retains heat and ensures quick drying, is used.

The TechnoButter Firewall material, also with properties that maintain proper thermal regulation and dryness, is used on the buttocks and thighs.