Donic BlueGrip S1

The Donic Bluegrip rubbers have a sticky topsheet equipped with a dynamic sponge. The Donic Bluegrip series consists of four rubbers. The Bluegrip C1 is the hardest and fastest, the Bluegrip C2 is the second hardest, the Bluegrip S1 is the third, which makes the Bluegrip S2 the softest with the best control.