This is an upgraded version of the hard-to-improve-on Evolution rubbers. The idea was to find the optimal balance between the power of the Evolution P rubbers with the spin of the Evolution S rubbers. The core difference is the brand-new RED ENERGY SPONGE, which, combined with the MX-P-like topsheet, results in increased dwell time, meaning softer touch and more comfortable feeling, and at the same time a very strong catapult effect, especially during offensive topspin rallies. Despite the hard sponge, you get soft feeling, which opens up many possibilities for skilled players.