With the Natural Foot Shape last, Prince NFS Attack indoor, squash, racquetball shoes follow the natural shape of your feet for optimum comfort and performance. These flagship shoes give players incredible stability and superior traction. Better ventilation means your feet will stay cooler and increased flexibility means you'll have better access to the ball.Upper: Lightweight synthetic upper with breathable open mesh panels increase ventilation, support and flexibility. Flat laces reduce irritation and pressure points. Padded tongue and heel collar enhance comfort. Midsole: TPU Arch Bridge provides added midfoot support. Full length compression molded EVA offers lightweight cushioning and support. Removable insole. Mesh lining offers a smoother fit. Outsole: Multi-traction outsole tread patterns provide superior traction and durability for numerous indoor sports.