The QuadConcaveTM is the pinnacle of high-performance bodyboarding. Designed with Shape3d® CAD software and precision cut using state of the art AkuShaper® CNC technology. The Central Double Concave tracks laminar (water) flow through the centre of the board, keeping you higher on the wave face, enabling you to generate more board speed. Outer Venturi Channels draw the laminar flow from a wider entry point into a narrow exit through the tail. Based on Bernoulli’s principle, the laminar flow increases in speed as it progresses through the channel, giving you more drive. By combining technology with science NMD brings you the world’s fastest bodyboard.