A prosthetic foot device having a toe region, an ankle region and a heel region, said device comprisingan attachment unit configured to be connected to a coupling device and/or to stump of an amputeea resilient upper forefoot member extending from the attachment unit through the ankle region towards the toe region, said forefoot member comprising at least one elongated curvilinear forefoot leaf spring and at least one longitudinally extending parting slot dividing the toe region in at least two parts:a resilient heel member extending from the attachment unit through the ankle region towards the heel region, said heel member comprising at least one elongated curvilinear heel leaf springa resilient lower foot member attached to the forefoot member at said toe region and to said heel member in the heel region, wherein said lower foot member is laterally unitary along the longitudinal length thereof.
