This is a heel supporter that can be used in official club competitions. My child doesn't usually use supporters, but purchased this for temporary use because of the pain. 【Usage】 A sponge-like material about 1 centimeter thick covers the heel and is sewn together with another fabric to prevent slippage. It is designed to be tighter than regular socks to prevent slipping when stepping down. (Think of compression socks.) https://kendo-bou-gu.com/c/list/supporter/CN_kakato ↑ Purchase site Size M Purchased in September 2025. The size was a little too small, so it was only tried on and is unused because the size didn't fit. Thank you for looking. #heel #heelsupporter #kendo #sizeM