The Yonex Power Cushion 308 Black is the latest generation Yonex tennis shoe for 2012 and continues the tradition of lightweight performance, now in a sleek black and silver cosmetic. The 308 offers new cosmetics with all of the performance of the last generation SHT models. Tough Brid cushioning lasts longer and is more responsive than traditional EVA. New stability outrigger for improved lateral stability without adding weight. Outstanding cushioning, lightweight, and improved stability, the Power Cushion 308 is an all-around performer! Worn by Stan Wawrinka.