Thank you for viewing! These are support socks that correct your feet. I used to wear them during yoga class. I quit the class, so I'm selling these. When I wore them, my balance improved, and it was easier to do yoga poses. [Color] Black [Material] Polyester, polyurethane [Size] S: 22.5cm - 23cm Retail price: 1680 yen For the style you've always wanted and beautiful posture Supporters that form the arch of the foot 3D three-dimensional sewing based on ergonomics firmly wraps the feet There is cushioning on the heel and the base of the toes (the tip of the sole of the foot), which firmly creates the arch of the foot and absorbs shock due to the cushioning Non-slip rubber is attached, so you can wear them while doing sports, etc.