This 3/2 mm fullsuit is a slap in the face. It is 100% UltraStretch, UltraSoft.It has an X-Zip system. Which is a horizontal zip on outer flap with elastic cord inside seals to prevent flushing. It has a interlock water-resistant zipper, Thermobarrier texture skin on upper, Fusion seams, stitchless outside seams, pressure bonded taped seams on lower body and legs, double-glued seams, DuraFlex knee panels and wrist and ankle fusion seal. It is Made of QuikDry neoprene.