Gel-Resolution X Men'sThe GEL RESOLUTION10 tennis shoe creates advanced stability and cushioning for players who like to control the game from the baseline. "When you slide, you are braking, and if you reduce the time you are braking, you are able to return to the center of the court earlier," Hermanns says. "We have updated our full length outsole to make sure you brake faster." Asics says the Gel Resolution 9, as researched at the Asics Institute of Sports Science,