Air Zoom Vapor X Nike Tennis Shoes for men feature a refreshed Dynamic Fit system, providing ultimate foot control and zoom Air on the heel for dynamic anti-vibration protection. Federer shoes. As the design is based on the principles of Generative Design, the additional grip is provided on the perimeter of the outer soles to support the sudden changes in direction to the pitch. Collar lining for added comfort. Phylon insole for lightweight, high-impact anti-shock protection. “Vapor 9 was a great shoe from the beginning. Tinker Hatfield did a great job of understanding exactly what I was looking for: a combination of a tennis shoe and a jogging shoe,” said Roger Federer in a statement.