A prosthetic foot device (10; 10e), comprising: a) an attachment member configured to be coupled to a stump of an amputee; b) an elongate forefoot spring (42; 42e) having an attachment end coupled to the attachment member and extending to a toe end positioned at a toe location of a natural foot, the forefoot spring (42; 42e) including a resilient material and bendable to store energy in the forefoot spring (42; 42e) when deflected and return the energy from the forefoot spring (42; 42e) when released; c) a forefoot bumper (34; 34e) disposed between and compressible between the attachment end of the forefoot spring (42; 42e) and the attachment member, the forefoot bumper (34; 34e) including a flexible and resilient material and storing energy in the forefoot bumper (34; 34e) when compressed and releasing the energy from the forefoot bumper (34; 34e) when released; d) a heel spring (54; 54e) having an attachment end coupled to the forefoot spring (42; 42e) and attachment member and extending to a heel end positioned at a heel location of a natural foot, the heel spring (54; 54e) including a resilient material and bendable to store energy in the heel spring (54; 54e) when deflected and return the energy from the heel spring (54; 54e) when released; e) a heel bumper (38; 38e) disposed between and compressible between the attachment ends (46; 58) of the forefoot and heel springs, the heel bumper (38; 38e) including a flexible and resilient material and storing energy in the heel bumper (38; 38e) when compressed and releasing the energy from the heel bumper (38; 38e) when released; f) the heel spring (54; 54e) bending and the heel bumper (38; 38e) compressing upon heel strike during use; and the forefoot spring (42; 42e) bending and the forefoot bumper (34; 34e) compressing during toe-off, g) a bore extending through the heel spring (54; 54e), the heel bumper (38; 38e), the forefoot spring (42; 42e) and the forefoot bumper (34; 34e); and h) a fastener extending through the bore and attached to the attachment member such that the heel spring (54; 54e), the heel bumper (38; 38e), the forefoot spring (42; 42e) and the forefoot bumper (34; 34e) are carried by the fastener and secured to the attachment member by the fastener, characterised by (i) a forefoot stop (82; 82e) coupled to the attachment member and disposed over and spaced above the forefoot spring (42; 42e), the forefoot spring (42; 42e) bendable into a space between the forefoot spring (42; 42e) and the forefoot stop (82; 82e) under normal use conditions, and the forefoot spring (42; 42e) bendable to abut to the forefoot stop (82; 82e) under extreme use conditions. a) an attachment member configured to be coupled to a stump of an amputee; b) an elongate forefoot spring (42; 42e) having an attachment end coupled to the attachment member and extending to a toe end positioned at a toe location of a natural foot, the forefoot spring (42; 42e) including a resilient material and bendable to store energy in the forefoot spring (42; 42e) when deflected and return the energy from the forefoot spring (42; 42e) when released; c) a forefoot bumper (34; 34e) disposed between and compressible between the attachment end of the forefoot spring (42; 42e) and the attachment member, the forefoot bumper (34; 34e) including a flexible and resilient material and storing energy in the forefoot bumper (34; 34e) when compressed and releasing the energy from the forefoot bumper (34; 34e) when released; d) a heel spring (54; 54e) having an attachment end coupled to the forefoot spring (42; 42e) and attachment member and extending to a heel end positioned at a heel location of a natural foot, the heel spring (54; 54e) including a resilient material and bendable to store energy in the heel spring (54; 54e) when deflected and return the energy from the heel spring (54; 54e) when released; e) a heel bumper (38; 38e) disposed between and compressible between the attachment ends (46; 58) of the forefoot and heel springs, the heel bumper (38; 38e) including a flexible and resilient material and storing energy in the heel bumper (38; 38e) when compressed and releasing the energy from the heel bumper (38; 38e) when released; f) the heel spring (54; 54e) bending and the heel bumper (38; 38e) compressing upon heel strike during use; and the forefoot spring (42; 42e) bending and the forefoot bumper (34; 34e) compressing during toe-off, g) a bore extending through the heel spring (54; 54e), the heel bumper (38; 38e), the forefoot spring (42; 42e) and the forefoot bumper (34; 34e); and h) a fastener extending through the bore and attached to the attachment member such that the heel spring (54; 54e), the heel bumper (38; 38e), the forefoot spring (42; 42e) and the forefoot bumper (34; 34e) are carried by the fastener and secured to the attachment member by the fastener, characterised by (i) a forefoot stop (82; 82e) coupled to the attachment member and disposed over and spaced above the forefoot spring (42; 42e), the forefoot spring (42; 42e) bendable into a space between the forefoot spring (42; 42e) and the forefoot stop (82; 82e) under normal use conditions, and the forefoot spring (42; 42e) bendable to abut to the forefoot stop (82; 82e) under extreme use conditions.