Achieve the ultimate blend of spin and controllable power with the Wilson Shift 99 Pro V1! Ideal for experienced players who prefer a medium-heavyweight frame, this tennis racquet adds spin to your 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 Shift V1 collection was built and refined via player feedback. Add in the plant-based materials used throughout the end cap and bumper, and the Wilson Shift Pro 99 v1 will bring your game to the next level. Shoe Technology Shift Benefit: Modern Spin and Comfort 18x20 String Pattern: Dense string pattern enhances feel and enhances spin potential via lateral bending Composition: Innovative geometry allows the racquet to bend in a way that generates ultimate comfort and keeps more balls in the court Reduced Environmental Footprint: End-cap, bumper composed of Agiplast, plant-based materials Finalized Product: Built and refined using feedback from players worldwide Design: Artic-prism design produces a clean, modern look that compliments its revolutionary technologies W Labs innovation team's patent-pending technology utilized computer-aided design software to create specific geometry that maximizes lateral bending without losing torsional stability.