ASICS SOLUTION SWIFT FF 2 CLAY The Asics SOLUTION SWIFT™ FF 2 Clay men's tennis shoes cater to all-court players seeking versatile performance. The shoe's sole design provides superior multi-directional motion control on court. FLYTEFOAM™ cushioning technology in the midsole softly cushions impacts. It is a light foam that enhances the cushioning. Stability is ensured by the TWISTRUSS™ stabilisation unit, which is integrated into the central part of the sole. The sole design mirrors that of the SOLUTION SPEED™ FF 2 shoe, reflecting its advanced technology and performance features. The latter is designed to provide enhanced grip on the surface beneath your feet. ASICS SOLUTION SWIFT FF 2 CLAY