Designed for maximum shock absorption during court sports-including racquetball and squash. Exclusive THOR-LON construction wicks moisture better. Thick cushioning in the ball/heel for maximum blister impact and shear protection. Extended cushioning over toes for maximum protection during fast stops and starts. Flat knit at instep for better fit. Fits shoe size- 9-12.5 (M), 10.5-13 (W)