Lightweight and fits Japanese feet. The split type allows you to wear your flip flops as is. The sole of the foot is treated with a star-shaped anti-slip treatment, making it compatible with fins. There is a hole for draining water. Product specifications and not defective product. [Estimated Size] XS: 8.9 inches (22.5 cm) / S: 9.3 inches (23.5 cm) / M: 9.6 inches (24.5 cm) / L: 10.2 inches (26 cm) / XL: 10.8 inches (27.5 cm) *Product detail images are for illustration purposes only. Logo and color may differ from current product.