The GEL-RESOLUTION™ X CLAY tennis shoe creates advanced comfort for the intermediate to competitive player who likes to control the game from the baseline and requires a stable, supportive shoe. The outsole is suited for Clay surfaces. DYNALACING™ technology has been strategically designed to hold when extra support is needed. This allows you to experience a locked-in feel when you're making quick transitions. There's also a two-piece midsole design that helps improve comfort and stability when your foot lands on the court. 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. Lastly, the higher medial collar adds extra support when making abrupt cuts back and forth. Recommended by Materials & Technology PGUARD™ technology Helps increase durability in the upper's forefoot inside area DYNAWALL™ technology Helps improve stability DYNALACING™ technology Helps create a stable fit during dynamic movements AHARPLUS™ outsole rubber Improves durability Forefoot GEL™ technology Improves impact absorption and creates a softer feeling at footstrike FF BLAST PLUS™ technology midsole foam in the heel Helps produce more comfortable and 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