EzeeFit Ultrathin Ankle Booties are form-fitting pull-on anti-blister booties designed to minimize blisters and relieve pressure points while skating. They fit snugly under a thin sock and can also be worn alone on top of your bare feet. The Ultrathin Bootie is best used in custom-fitting or tight skates to minimize friction from pressure points and when no additional padding is needed. At approximately 1mm thick, they take up minimal room in your skates. The new patent pending "Comfort Curve" heel shape contours to your heel for an even better fit.