The McDavid Adjustable Double Knee Strap provides advanced level protection and support to help aid in recovery of knee injury. This device applies comfortable, targeted compression at areas affected by Patellar Tendonitis or that need help with patellar tracking. Designed to improve knee tracking and to aid in recovery. Used by professional athletes and recommended by medical professionals. Movable, padded buttresses provide comfortable compression above and below the knee. Adjustable hook and loop closure provides a custom fit. Fit either Left or Right knee.