• Free size
• Urethane, Nylon

By attaching it to the toe box area, it fills the gap in the existing toe box and improves the fit. Also, by attaching to a toe box that has acclimated and expanded, it can be expected to prevent the toes from slipping down when standing on them. Recommended for those who suffer from left-right differences in foot width, as fine adjustments can be made. Made in Japan.