A prosthetic foot (100) comprises:i) a lower lamina (110) having a wavy shape comprising a curved front portion (111) and a curved rear portion (112), whose concavities are oriented upwards with respect to a vertical direction (V), and an intermediate, mostly curved portion (113) having a concavity facing away with respect to the concavities said front and rear portions (111, 112),ii) a sickle-shaped front lamina (120) comprising a lower end portion (121) restrained to said lower lamina (110) close to its front portion (111), an upper end portion (122) configured so as to allow connection of a mounting member (140) of the prosthetic foot, as well as an intermediate, mainly curved portion (123) arranged between the lower end portion (121) and the upper end portion (122),iii) a rear lamina (130) comprising an upper portion (131) restrained to the front lamina (120) close to its upper end portion (122), and a lower portion (132) restrained to the lower lamina (110) at its curved rear portion (112).The overall configuration of the prosthetic foot is such that the three laminas (110, 120, 130) are restrained to each other two by two and that their connection points form the vertices of a triangle.
