Total length is approximately 26cm. The blue base is firmly woven with 100% cotton cord. It's woven tightly, so it has thickness and fits the soles of your feet softly and comfortably. The arch of the foot is also woven in additionally. Cloth zori (sandals) gradually flatten out with wear, so the size can be approximate. They are made so that the space between your toes doesn't hurt, providing a comfortable fit. The thong core is also made with split PP rope wrapped in cloth, making them easy to wear. *Reinforcement string is included to use if the thong loosens with wear. All materials are new. Wash by hand or in a laundry net. You should be able to use them for a long time. Thank you for viewing. *Delivery will be one pair at a time via Nekopos (a Japanese delivery service).