Thuasne GenuExtrem Knee Brace for relief of mild, unidentified pain, proprioception, resumption of activities after injury. It provides extreme comfort and adjustable support for stiff, sore or unstable knees. Great for controlling subluxated patellas, and allows for leg flexion and extension, so you get the support you need without restricting your flexibility. Proprioceptive knee brace with flexible stays is recommended for mild indeterminate pain