This is a Gakuya stretch tabi bag. Since it has an elastic cuff that does not have a peach, it is easy to put on. Stretch material stretches so it can be used by people with high insteps. Material: 100% nylon, Size: M size 8.7 - 9.4 inches (22 - 24 cm), LL size 9.4 - 10.2 inches (24 - 26 cm).