To provide a genu recurvatum knee brace that can adjust the extension limit angle of the knee. [Solution] The knee band 70 includes a knee posterior pad 71 that presses against the posterior part of the
knee joint, an upper posterior band 74 with one end fixed above the one connecting portion 21a, an upper posterior band 75 with one end fixed above the other connecting portion 21b, a lower posterior band 76 with one end fixed below the one connecting portion 21a, and an lower posterior band 77 with one end fixed below the other connecting portion 21b. A tightening mechanism 80 is provided that allows the pressing force applied to the posterior part of the
knee joint by the knee posterior pad 71 to be increased by pulling the other end of the upper posterior band 74, the other end of the upper posterior band 75, the other end of the lower posterior band 76, and the other end of the lower posterior band 77.