Imagine a co-polyester that was engineered to have a triangular shape and wastwisted during the extruding process and what are you left with? The answer is the new Wilson Spin Cycle. Made to provide players with an extreme amount of spin andbite on the ball, the Wilson Spin Cycle makes great use of its twisted and triangular shape and Wilson did not stop there. With a PVDF coating, the string minimizes friction to keep durability in place. The new Wilson string offers great spin and is best suited for those aggressive swingers.