Purchased from Asakusa Nakaya. Only tried on. Retail price: ¥7,700 The following information is from the website: ↓ The base of the sandal is narrower at the "tsubo-sagari" (arch) to create a slimming effect. Size guide: L: 25-26cm, LL: 26-27cm * Both sizes are designed to be worn with the heel slightly exposed. Thank you for looking.