Genesis Spyder Super 8 Set Gauge:17 you need a shoe that

you need a shoe that responds to your every move

the ISOMETRIC™ design increases the sweet spot by 7%*

Developed over several years of relentless testing

power and spin of the Boom MP into a lighter

a square-shaped ISOMETRIC™ racquet generates a larger sweet spot by optimizing the intersection of the main and cross strings

Genesis Spyder Super 8 Set Gauge:17 you need a shoe thatThis String results from years of testing materials to create the ultimate playability string. Finally, we have here something quite impressive: combining so many great high keys in one string was impossible before today! This string will revolutionize tennis, make you feel better on the court, and achieve higher results. Only one string combines durability with power, spin, and tension. Stability: Spyder Super 8.