Perfect for players seeking a grip that provides excellent all-around performance in a smoother, tackier, and more tactile feel, the ST+ 2 Hybrid Calibrate features a variety of breakthrough technologies designed to provide maximum playability and performance. While the Calibrate Technology reminder encourages consistent hand placement for better control, the all new “Smooth Tack” Genesis Material incorporated into two distinct zones to provide more traction in the upper hand and soft tactile feel in the lower for incredible performance.