One-size-fits-most support with adjustable tension straps gives your ankle a custom fit. Patented strapping system provides firm and even support to your ankle. Neoprene retains body heat for increased circulation to relieve pain, promote healing and keep joints flexible. It's flexible. It's lightweight and comfortable for all-day wear. Open heel allows for snug, comfortable fit.Seamless design helps prevent irritation or chafing.Sectional design minimizes slippage and bunching.Adjustable tension straps provide custom fit for controlled compression.One Size.