Yonex 2017 POWER CUSHION AERUS 2 features shock absorption that reverses the impact energy for smooth transfer into the next movement. This is the lightest shoe in the Yonex line at 270g. Superior ventilation and solid fit. Upper: P.U. Leather, Polyester Mesh, Tough Guard IV, Durable Skin Light. Midsole: Hyper msLite Power Cushion Solid E.V.A. Power Graphite Sheet. Outsole: Rubber. Color: Navy Blue. MFG#: SHBA2MEX.