Mueller Wraparound Knee Brace. Ultimate protection for knees needing maximum support. Mueller's patented Triaxial Hinges provide maximum medial/lateral support, without restricting mobility. Patella buttress stabilizes and protects the knee cap. Helps control subluxating patellas and aids in the treatment and relief of chondromalacia (irritated knee cap). Wraparound design for easy on/easy off. Adjustable straps above and below the knee for added support, proper fit and comfort. Open back eliminates bunching behind the knee. Extra front padding and rugged "extra-stitching" seams.