Support firms and stabilizes the medial knee complex without impairing flexibility, and helps restrict the abnormal rotation that causes injury. Beige, 2-way stretch Spandex® elastic sleeve is 13″ long. Segmented tension straps provide support and fasten with a hook and loop closure. Specify size: (Circumference 6″ above and 6″ below knee) Small 17-18″ lower 13″-14″; Medium upper 18″-19 1/2″ lower 14″-15″; Large upper 19″-21″ lower 15″-16″; X-Large upper 20″-22 1/2″ lower 16″-17″.