These are gaiters from C3fit, designed with "graduated compression" to promote blood circulation. *General medical device "elastic stockings"* Material: 75% nylon, 25% polyurethane Color: (SN) Smoke Navy Retail Price: ¥4,320 (tax included) Size: Unisex S * S: Calf 32-36cm, Height 160-175cm, Ankle 20-23cm The tags have been removed. Used a few times during running. Thank you for reading to the end. #Marathon #Running #Walking #Training #Ekiden (relay race)