Wilson Shift 99 Pro v1 tennis racket. Ideal for experienced players who prefer a medium-heavyweight frame and are looking to add spin to their game. The Shift 99 Pro includes a dense string pattern and bending profile built to be stable, yet laterally flexible to produce devastating spin while maintaining control. A first of its kind, the Wilson Shift v1 collection was built and refined via player feedback from all over the world. Add in the plant-based materials used throughout the end cap and bumper, this racket will bring your game to the next level.