Men's ASICSA(R) Solution Speed FF :: Advantage, you. With the addition of the responsive FlyteFoamA(R) Midsole Technology and Twisstruss system, the Solution Speed FF boasts the lightest weight in the tennis shoe category, making it an aggressive competitor that's always up for a match. Heel-to-toe GELA(R) cushioning offers maximum comfort and shock absorption for those quick cross-court hustles while the Flexion FitA(R) Upper secures your foot without restricting movement.