PROBLEM TO BE SOLVED: To provide a supporter for a lower extremity allowing a user to easily wear or remove it according to a situation of the user and to perform wearing/removing operations without any difficulty.SOLUTION: A supporter 50 for a lower extremity for supporting walking of a wearer by contraction force of an elastic material, includes: a foot worn part 14 to be worn with it surrounding a toe part or an instep part of a foot a knee worn part 10 to be worn with it surrounding a knee part or the vicinity of the knee part and a first stretchable part 12 suspended between the foot worn part and the knee worn part and formed of the elastic member being present on a front side of the anterior tibial muscle.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】利用者の状況に応じて、簡易に装着したり、取り外したりする事ができ、装着・取外し動作を困難なく行う事ができるようにした下肢用サポータを提供する。【解決手段】弾性素材の収縮力によって装着者の歩行を支援する為の下肢用サポータ50であって、足のつま先部又は甲部を包囲して装着される足部装着部14と、膝部又は膝部近傍を包囲して装着される膝部装着部10と、当該足部装着部と膝部装着部とに連架されて、前脛骨筋の正面側に存在する、弾性素材で形成された第一伸縮部12とからなる下肢用サポータ。【選択図】図1