The Physiologix Essential Range is designed to deliver light support and maximum comfort without restricting movement• Enhanced lightweight, breathable, durable stabilizer that provides support whilst helping to prevent re-injury• Ergonomic design to provide uniform support & compression• 360° Stretch, contour design prevents slippage & ensures a proper fit• Re-enforced edges for durabilityMeasure around the smallest point above the ankle bone for your size*Small (S) - 5-8""/17-20cmMedium (M) - 8-9""/20-23cmLarge (L) - 9-10""/23-25cmExtra Large (XL) - 10-11""/25-28cm*Please note: Sizes are for guideline purposes only and may vary slightly