The GEL-RESOLUTION 9 tennis shoe provides improved stability and cushioning; for players who like to control the game from the base line. The DYNAWALL technology in the midsole now extends to the heel and provides more stability during lateral movements, an important feature when running to cover both sides of the base line. DYNAWRAP technology in the reinforcement eyelet has been strategically redesigned to apply pressure when additional support is required. In this way, you can experience a more stable feeling during quick transitions. Finally, the full-length outsole and separate heel counter ensure a more stable grip and quick recovery between strokes.