22.5cm, with 4 hooks. Espa is a tabi made using a stretch cotton material developed by Toyobo. With excellent elasticity, it fits the foot without constricting it, while also reducing the burden on the foot, providing a comfortable fit. Moreover, it maintains the breathability and moisture absorption that are characteristic of cotton. It can be widely used for formal occasions, stage performances, tea ceremonies, etc. The sole fabric uses Toyobo's shrink-resistant fabric. Since it has padding on the instep, it is a high-quality tabi that does not wrinkle in an unsightly way. It is certified by a dressing instructor, so please purchase with confidence. Although it is new, there are wrinkles on the outer bag that occurred during storage. For those who understand that this is a home-stored item, thank you.