The GEL-CHALLENGER 14 CLAY tennis shoe creates the stability you need at the starting point, so you can keep your mind focused on controlling your game. The shoe's supportive upper helps keep your feet in place on the shoe's platform. It creates a feeling of reinforcement during volleys or when you step back to catch a deep lob. DYNAWING technology is placed in the sidewall to improve stability during lateral movements This feature offers excellent support, so you can lunge to catch a ball or hit one with more pace. The outsole also features a separate heel to help you feel more stable during sudden propulsions.