The new Solution Speed FF shoe keeps the same low-profile sole geometry yet features a new high-performance upper design. A midfoot Trusstic provides improved torsional stability while the forefoot lateral propulsion design allows for responsiveness and control during intense play. Rearfoot and Forefoot GEL Cushioning systems combine with the lightweight Solyte Midsole to provide excellent cushioning while the full-length Flexion Fit forefoot and P.H.F. collar fit system offers extreme comfort and support for even the most aggressive, agile players. Great shoe for competitive tennis players looking for a lightweight shoe for fast-paced play.