The DONIC BLUEGRIP S1 offers a slight increase in hardness compared to the S2, while remaining softer than the C1 and C2 versions. It fills the gap for players who find the S2 too soft but still want the spin and feel of a true BLUEGRIP. With its sticky-elastic top sheet and dynamic sponge, the S1 delivers a strong catapult effect and a perfect balance of speed and control. Designed for offensive players, it provides excellent grip, precision, and spin, making it ideal for those seeking a powerful yet controlled playing experience.