The new Neottec X5 is a next generation Japanese made rubber of topnotch quality. Both the rubber mixture of the topsheet surface and the pimple structure topsheet bottom side are specially engineered to make a spinny rubber. The sponge is springy and dynamic with built in tension, which energetically propels the ball forward with speed and power. FCH technology adds a specific ball feeling and a very satisfying clicking sound. The rubber will be available in two versions, the slightly more controlled focused S version and marginally faster M version, allowing you to tune your racket to perfection.