YONEX CASCADE 21.5 - Size Over [YONEX] Badminton Shoes Power Cushion Cascade Accel Slim There are some scuffs and wear, but I don't feel like it's very dirty. Much better than the standard junior shoes. Still usable. YONEX's new badminton shoes "CASCADE". An all-around series that transmits power without loss even with fast footwork. The toe assist shape design eliminates pressure on the big toe, and by enhancing the support of the midfoot and heel, it suppresses foot slippage in the shoes and realizes quick footwork without power loss.