PROBLEM TO BE SOLVED: To provide a knee supporter that prevents the knee joint from facing inward by inhibiting the knee join from turning, and prevents the tibia from being pulled out forward relative to the thighbone.SOLUTION: The knee supporter 1 includes a supporter body 11 provided with: an elastic inner fastening belt 12 wrapped around the knee to the rear side of the lower thigh from the lower outside of the patella 22 through the inside of the knee joint and an elastic outer fastening belt 13 wrapped around the knee to the rear side of the lower thigh from the lower outside of the patella 22 through the outside of the knee joint. The inner fastening belt 12 is formed of a relatively high elastic material as compared to the outer fastening belt 13.COPYRIGHT: (C)2012,JPO&INPIT【課題】膝関節の回旋を防止して膝関節が内側に向くことや、大腿骨に対する脛骨の前方への引き出しを防止することのできる膝サポータを提供する。【解決手段】膝蓋骨22下方外側から膝関節内側を通って大腿下部後側へ掛け回される伸縮性の内側締付ベルト12と、膝蓋骨22下方内側から膝関節外側を通って大腿下部後側へ掛け回される伸縮性の外側締付ベルト13とをサポータ本体11に設けて構成され、内側締付ベルト12は、外側締付ベルト13に比べて相対的に高い伸縮性素材を用いていることを特徴とする膝サポータ1である。【選択図】図1