Back on Track’s BEST-SELLING PRODUCT! This Knee Brace with hook & loop closure is extremely popular and has a snug, comfortable fit. During physical activity, you can tighten the Knee Brace and loosen in periods of rest. With the revolutionary Welltex Ceramic Fabric, this Knee Brace is unique and chic. Comes in a range of sizes (Small, Medium, Large, Extra Large, XX Large and XXX Large). For a correct fitting, measure the circumference of the thigh 13-16cm above the knee cap. S (14-16inch), M (15-17inch), L (16.5-18inch), XL (18-20.5inch), XXL (20.5-24inch) en XXXL (23.5-25inch).