PROBLEM TO BE SOLVED: To provide a posture correction device being usable for a prolonged time without a sense of discomfort and reliably retaining a correct posture.SOLUTION: A closed annular band part 3 is composed of a stretchable elastic body 1 as a whole and, in a free state, has such a shape that the width dimension W0 of a central area 2 in the horizontal direction is reduced and narrowed. The band part and a connection part 4 for connecting the band part 3 at the central area 2 are integrally formed. In a worn state, the band part 3 is configured to keep an extended state, with it hung on both shoulders from the back side of a user and pull the shoulder blades of the user towards the back center by repulsive force.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】長時間にわたって違和感なく使用でき、かつ、確実に正しい姿勢を保持する姿勢矯正具を提供する。【解決手段】全体が伸縮自在の弾性体1から成り、自由状態で左右方向中央領域2の幅寸法W0が絞られて括れた形状の閉環状バンド部3と、中央領域2でバンド部3を連結する連結部4とが、一体に形成され、装着状態で、バンド部3は、使用者の背中側から両肩に掛けられて伸長状態を維持しつつ、弾発力をもって、使用者の肩甲骨を背面中央に引き寄せるように構成されている。【選択図】図1