The Physiologix Essential Range is designed to deliver light support and maximum comfort without restricting movement. It features an enhanced lightweight, breathable, durable stabilizer that provides support while helping to prevent re-injury. The ergonomic design offers uniform support and compression. A 360° stretch, contour design prevents slippage and ensures a proper fit. The re-enforced edges provide durability. Measure around the smallest point above the ankle bone for your size. The sizes are for guideline purposes only and may vary slightly. This product is suitable for women's or unisex use.