The GEL-RESOLUTION 9 tennis shoe offers maximum stability and cushioning for players who like to control the game from the baseline of court. \ The DYNAWALL technology in the midsole now extends all the way to the heel for added stability when moving sideways. It's an effective functional element when you're running to cover the bottom line of court from side to side. DYNAWRAP technology at the eyelets has been strategically redesigned to apply pressure when extra support is needed. This allows you to experience a feeling of total support when making quick transitions.Finally, the full-length outsole and separate heel help stabilize the landing for a more rapide recovery between shots.