The Asics Men’s Gel-Resolution 9 Tennis Shoe creates advanced stability and cushioning for players who like to control the game from the baseline. The combination of a more flexible upper, paired with a more extensive DynaWall stability piece towards the heel, allows these shoes to feel more stable, but also more dynamic at the same time. Lastly, the full-length outsole and separated heel help produce a more stable landing for quicker recoveries in between shots.Features:DynaFit Upper - Improves flexibilitySeparated Outsole Design - Helps produce more stable landingsAharPlus Outsole Rubber - Improves durabilityEnvironmentally Conscious - Produced with the solution dyeing process that reduces water usage by approximately 33% and carbon emissions by approximately 45%Technology:PGuard Technology - Helps increase durability in the outsole’s toe and heel areaRearfoot and Forefoot Gel Technology - Improves impact absorption and creates a softer feeling at footstrikeDynaWrap - Technology in the midsole now extends into the heel for added stability during lateral movements. A functional feature that’s effective when you’re running covering both sides of the baseline.DynaWall - Technology in the eyestay has been strategically redesigned to apply pressure when extra support is needed. This allows a locked-in feel when making quick transitions.A Sound Mind, in A Sound Body expresses Asics’ desire for people around the world to live healthful, happy lives both physically and mentally.