Our unique Delta-Flex 'Semi Tech' Semi-Dry wetsuit, features a unique Dry-Tech 'Thermal Shield' vest, incorporated within the one-piece wet suit. Like our Delta-Flex 'Omega' wetsuit, the hard-wearing properties of our 'Semi-Tech' does not reduce its superb flexibility. This is due to the Super-Stretch DFN-Ultragrade™ Neoprene, that is used in the manufacture of this suit. The internal lining also provides extra warmth, comfort and insulation. Through its unique Ti-Ax® Thermacote® Titanium 'Terry' lining, featuring a unique additional anti-bacterial coating. The build quality is exactly what divers have come to expect from Northern Diver wetsuits, drysuits and semi-dry suits. Offering Heavy-Duty triple-glued and blind-stitched seams, the highest quality Neoprene and all coordinated within exceptional quality control and customer service. Regardless of individual proportions, our Semi Tech' Semi-Dry wetsuit was carefully designed to fit almost anyone.