Midsole Molded EVA, with Exact Pro Exact Pro propulsion technology comprised of Pebax Rebound Fish polymer sandwiched between layers of dynamic camflex material. Generates a dynamic impulse to assist in lateral and diagonal movement in the forefoot of the shoe. Heel Vibrakill shock absorption designed specifically for tennis. Promotes quicker recovery due to optimized capacity for restitution. Outsole Michelin All Court provides traction on all surfaces. Upper Synthetic Leather and mesh. Average weight 14.0 oz. Size 10.5