A high end polyester string that offers a crisp feel and good ball pocketing. The Prince Poly EXP lands somewhere in the middle between a stiff poly and a soft poly. We found the string to bite into the ball well, providing ample amounts of spin. Because the string is not a monofilament polyester, we felt it provided nice pace on our shots. When it comes to polyester strings, control and access to spin is expected, both of which can be found with the Poly EXP.