Blow the competition away in the Nike Air Zoom Vapor IV. This high-performance tennis shoe provides the professional tennis player with the ultimate in speed, court feel and stability. Lightweight synthetic upper provides a contoured, speed fit with forefoot flexibility and regionalized durability at toe tip and medial forefoot. Full-length Phylon™ midsole features Zoom Air™ units in the heel and forefoot for responsive cushioning. Full-length DRC2 herringbone outsole provides great traction on a variety of court surfaces. Momentum Control System provides enhanced stability.