Postural correction device (1) characterized in that it is disposed in the lumbar area and comprises an internal stiffening structure (2) that has a general "U" shape and that is housed inside an outer covering (3) that presents at its ends some wings (5). (Machine-translation by Google Translate, not legally binding)1. Dispositivo corrector postural (1) caracterizado porque se dispone en la zona lumbar y comprende una estructura interior rigidizadora (2) que presenta una forma general de "U" y que queda alojada en el interior de una cobertura exterior (3) que presenta en sus extremos unas alas (5).