The ultimate in cushioning and stability. Featuring new DST O2 technology in the heel for improved, lighter-weight shock absorption and enhanced stability. The next generation of DynoSphere Technologyâ„¢ combines TPR spheres with air for lighter-weight, improved shock absorption and enhanced stability. Phylon midsole with a new visible DST O2 pad in the heel and original DSTâ„¢ in the forefoot for improved, lighter-weight shock absorption and enhanced stability Full grain leather upper with TPU molded Stable-Wrap for lateral support and Heel Strap Locking System for enhanced fit Molded mono-mesh slits are placed in the Stable-Wrap mold for breathability - Stable-Wrapâ„¢ Technology is the only patented midsole you actually lace through for enhanced lateral and medial support, stability and improved footwork Non-marking Duralast Supreme outsole with combination herringbone and nubbed tread design for excellent durability and traction on all court surfaces Duralast Supreme toe guard provides excellent durability for toe draggers 2 color Midfoot bridge for enhanced balance, propulsion, and cushioning DuPont® Engage footbed ERGOsole geometry for lightweight shock absorption.