A prosthetic foot device having a longitudinal direction and a transverse direction and comprising a base spring blade, an ankle spring blade being made from a composite material comprising glass fibers and a heel spring blade, the base spring blade and the ankle spring blade being connected in a forefoot region of the prosthetic foot device, the base spring blade and the heel spring blade being connected in a heel region of the prosthetic foot device and the ankle spring blade and the heel spring blade being connected in an ankle region of the prosthetic foot device.
