Note: the 1.8mm and 3mm versions of this wetsuit have stitched seams rather than glued seams. A layer of polymer is spread along the seams to protect and seal them, thereby increasing the resistance to wear, the lifetime of the suit, and its insulating power. 1.8mm and 3mm open-cell Green-mimetic neoprene Preformed anatomical cut. BC with padded chest reinforcement, and Powertex waist. Watertight seals at the wrists and waist, and Powertex reinforcement on the knees.