Yonex Power Cushion Fusion Rev tennis shoes are all about providing access to smoother movement and quick footwork. With an incredible fit that marries your feet to the shoes, you'll feel confident and secure during your most intense multidirectional actions. With maximum support and energy transfer, get ready to play with elite performance.Upper:QuattroFit upper design increases durability and comfort with no break-in period. Guard Durable Skin retains the shape of the upper to help prevent lateral movement of the foot inside the shoe. Padded heel collar enhances comfort. Double Russel Mesh is an ultra-fine mesh that is extremely lightweight and durable with eight times more air exchange for releasing moisture than ordinary mesh fabric. Midsole: Revolutionary 3-layer Power Cushion design uses a firm top and bottom layer to absorb 30% more shock than original Power Foam. Power Graphite Sheet keeps the foot stable and centered. ToughBrid Light is 11% lighter than ToughBrid while generating a significant reduction in leg and knee stress. Synchro-Fit Insole allows a closer fit between the shoe and foot, keeping power loss to an absolute minimumto achieve smoother movement and quicker footwork.Outsole: Non-marking outsole. Round Sole designed to provide all around support for quick and smooth footwork. Endurance Rubber.