Support for weak or injured ankles, comfortable elastic, durable protection, fits left or right ankle. Mild support. Care instructions: Hand wash in cool water with mild soap. Wrap in towel to remove excess water. Air dry away from heat. Ankle sizing chart: S (7-8.5"), M (8.5-10"), L (10, 11.5"), XL (11.5-13.5"), XXL (13.5-15").