The Evolution upper rubber with the best tuning in terms of grip, coupling, optimized ball contact time, energy absorption and release, has been combined with a flexible medium-hard RED ENERGY SPONGE. This newly developed sponge offers higher dynamics with a softer feel and shows its enormous power especially in topspin.
The result is the new EVOLUTION version FX-D, which plays noticeably different than the also excellent FX-P and FX-S versions and even moves in the range between the high performance EL-P and EL-S rubbers and the top models MX-P and MX-S in terms of performance, spin and tempo values.
This dynamic in the flexible medium-hard range is unparalleled and has the claim to set new standards.