COLDWATER WETSUIT FROM THE HYPERFREAK SERIES . The HyperFreak is constructed with superlight TechnoButter 3, TB3X neoprene and TB3X fully welded seams. O'Neill has added 0.5 mm thicker material as a step-up. The minimal seam design, light weight, quality construction and attention to detail make this favourite another O'Neill team.TechnoButter3 is O'Neill's exclusive new pre-stretched neoprene with featherweight ENVY foam core. The lightest, most flexible, softest material ever created. It provides superior flexibility and fit.O'Neill uses 100 % recycled tyres to make the Carbon Black in their neoprene, as well as limestone-based neoprene and eco-friendly, solvent-free laminate adhesive that is entirely water-based.