Power Cushion Technology Stay one step ahead of your opponent with the Yonex Power Cushion Ad-Accel! Perfect for experienced players, this speedy tennis shoe accelerates movements for quicker attacks. ACCEL BOOSTER Technology improves speed for faster pivots and total court coverage. Explode toward every shot as the Power Cushion+ midsole returns energy to propel you forward.Enjoy soft landings and smooth heel-to-toe transition from the Heel contact and Round Sole design. Powered by racquet science, the Yonex Power Cushion Ad-Accel boosts your game!