True Grit is a further development of premium co-polyester strings offered by Genesis. Utilizing cutting edge technology and new composite additives, True Grit delivers outstanding performance. Genesis True Grit is a 10 sided shaped string that offers exceptional spin, control, comfort, and power. True Grit is also axially twisted and offers a tremendous blend of dynamic power and spin while providing excellent tension stability and playability. Now, this new Version of True Grit has one more feature that was lacking in the previous version: Tension Stability and More Power.