EXCELLENT FLEXIBILITY AND DURABLE TRACTION The Nike Air Cage Advantage Men's Tennis Shoe features Drag-On Cage technology for maximum flexibility and sport-specific stability. A Max Air unit offers superior impact protection and cushioning. Benefits Drag-On Cage technology for enhanced flexibility and support with unique data-informed pattern for tennis-specific stability Max Air unit in heel for lightweight cushioning, impact protection and comfort Phylon midsole for lightweight cushioning Mesh throughout the upper for excellent breathability Full-length XDR outsole with traction pattern mix for long-lasting durability on hard court surfaces Internal wear-shelf at outsole with varying levels of thickness for durability and flexibility where players need it most Product Details Synthetic leather heel for lightweight durability Padded tongue and interior lining for comfort and reduced irritation Midfoot shank for lateral support and stability during quick directional changes and sprints Articulated lacing for improved fit and reduced irritation Shortened forefoot panel at outsole for enhanced flexibility and reduced overall weight