The GEL-RESOLUTION™ 9 offers greater stability and cushioning for tennis players who want to control the game from the baseline. DYNAWALL™ technology in the midsole now extends to the heel for added stability during lateral movements. DYNAWRAP™ technology in the eyelet bar has been redesigned so you can apply pressure to the shoe when you need extra support. Finally, the full-length outsole and separate heel counter offer greater stability on landings and quicker recovery between shots.