A prosthetic foot device (1) having a longitudinal direction (L) and a transverse direction (T) and comprising a base spring blade (2), an ankle spring blade (3) being made from a composite material comprising glass fibers and a heel spring blade (4), the base spring blade (2) and the ankle spring blade (3) being connected in a forefoot region (5) of the prosthetic foot device (1), the base spring blade (2) and the heel spring blade (4) being connected in a heel region (7) of the prosthetic foot device and the ankle spring blade (3) and the heel spring blade (4) being connected in an ankle region (9) of the prosthetic foot device.
