Black sports sandals, comfortable synthetic material. - Color: Black - Style: Sports sandals - Strap type: Velcro strap - Material: Synthetic material Thank you for viewing. I saw an ad online and bought these about a month ago for around 10,000 yen. They are light. Size L, but the size can be adjusted with Velcro. I'm selling them because I find it easier to wear sandals without a back strap. Unisex.