These are cool and comfortable fabric zori sandals made from yukata fabric. Size: 23.5cm, width 9.5cm They are tightly woven, so they are durable. They may feel tight when you first wear them, but they will loosen up over time. If they become too loose, you can tighten the front strap from the back. You can wash them if they get dirty. Hand wash (do not rub) or machine wash (using a net), then spin dry and hang to dry. This will restore their fresh feel. Thank you for looking.