The Yonex Men`s Power Cushion Aerusdasg Tennis Shoes enhance your performance with the ultimate in lightweight stability, plus offers a rugged outsole for durability. Designed to be the lightest shoe made by Yonex, this shoe offers the best fit for your foot to enhance stability unlike other lightweight shoes.Upper: Double Russel Mesh is ultra lightweight and provides 8 times more air exchange than standard mesh fabrics, while the P.U. Leather makes the shoe extra durable.Midsole: Power Cushion provides a soft middle layer that returns to its original shape after receiving a shock load. Super EVA midsole provides extra cushioning and support, while the Quattro Fit system ensures you are supported at the four major stress points on your foot, which is also enhanced by T.P.U. for durability. Additionally, the Power Graphite Sheet prevents movement of the food inside the shoe during fast side steps.