The GEL-RESOLUTION® 9 tennis shoe creates advanced stability and cushioning for players who like to control the game from the baseline.DYNAWALL™ technology in the midsole now extends into the heel for added stability during lateral movements. It's a functional feature that's effective when you're running covering both sides of the baseline.DYNAWRAP™ technology in the eyestay has been strategically redesigned to apply pressure when extra support is needed. This allows you to experience a locked-in feel when you're making quick transitions.Lastly, the full-length outsole and separated heel help produce a more stable landing for quicker recoveries in between shots. Style #: 1042A208.701 UPC #: 197298340731 Tech & Materials PGUARD® technology Helps increase durability in the outsole's toe and heel area DYNAWRAP™ technology Improves stability DYNAFIT™ upper Improves flexibility AHAR®PLUS™ outsole rubber Improves durability Rearfoot and forefoot GEL® technology Improves impact absorption and creates a softer feeling at footstrike DYNAWALL™ technology Improves stability Separated outsole design Helps produce more stable landings The sockliner is produced with the solution dyeing process that reduces water usage by approximately 33% and carbon emissions by approximately 45% compared to the conventional dyeing technology