This ankle support is designed to help support and protect sore, weak, sprained, strained, and arthritic ankles. The patented strapping system provides firm and even support to your ankle. The soft neoprene blend retains body heat for soothing warmth to help relieve pain and keep your ankle flexible, and it's lightweight and comfortable for all-day wear. The adjustable tension straps provide custom fit for controlled compression, the sectional design minimizes slippage and bunching, and the seamless design helps prevent irritation and chafing. Finally, the open heel allows for a snug, comfortable fit. One size fits most - ranging from U.K. Women's 3. 5 to Men's 12.