A one-piece wetsuit with different thicknesses (8, 6. 5 e 5 mm) and attached hood for cold water. The suit is characterized by the water stop system, whereby a particular bib inside in ultrastretch material creates a double barrier against water infiltration and improves thermal insulation. Transverse front zipper, along with the special elastic span cover and x-plush lining, greatly facilitate the fit and donning. Special 6. 5 mm inserts on the arms and legs improve the joint anatomy, enabling smoother motion. Additional pre-bent embossing in the folds of the joints. Small diamond anti abrasion reinforcements on the shoulder and back side (buttocks). Protective reinforcement on the knees. 5 mm hood with air free valve to remove the air. Wrists and ankles have double cuffs with a zip; the size is printed in evidence on the inside wrists