Calibra Tour S has a soft sponge. Equipped with the brand new APS-technology, it provides very high speed and the fantastic possibility to shape your shots with the increased spin features. The APS technology (Advanced Pimple Structure) with straight shaped pimples makes the rubber adapt to the ball like never before and provides an explosive and spinny rubber that is reliable in every situation. Calibra Tour S is suitable for players with lower hitting power who need a rubber that helps generate extra speed with the exceptionally lovely sound of built-in speed glue effect. Enjoy the ultimate precision-shot-making experience!