The SOLUTION SWIFT FF 2 tennis shoe is built for speed and provides extra flexibility for an energised on-court experience. It s a great choice if you're an all-court tennis player looking for a fast, flexible shoe. The shoe's lightweight SPEEDTRUSS technology speeds up forward movement. We've added a new two-piece PRECISION-SOLE outsole to give you a lighter and more flexible feel, plus we've included our lightweight FLYTEFOAM technology to support your fast footwork. How does the SOLUTION SWIFT FF 2 shoe provide more flexibility and help you move faster? SPEEDTRUSS technology is lightweight and speeds up forward movement. New PRECISION-SOLE outsole ensures an optimal blend of grip and flexibility, helping you move with ease across the court. FLYTEFOAM technology in the shoe's midsole keeps the shoe lightweight to enable quick and easy movement.