Wilson Shift 99 v1 Tennis Racket. Ideal for intermediate to advanced, all-around players, the Shift 99 has an innovative string pattern and bending profile built to be stable, yet laterally flexible for controllable power and devastating spin. 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. All in all, this is a great option for intermediate and advanced players who want a versatile modern player's racquet that doesn't skimp on feel.