A prosthetic foot and ankle assembly comprising a combination of: a foot component, and an ankle joint pivotally mounted to the foot component at a first pivotal connection and having a fixed range of dorsi-plantar flexion about the first pivotal connection, the ankle joint being pivotally connected to the foot component at a second pivotal connection displaced in an anterior-posterior direction from the first pivotal connection, the ankle joint comprising a non-electronically controlled joint mechanism providing resistance to ankle flexion, wherein the joint mechanism comprises: a hydraulic linear piston and cylinder assembly having a piston, a cylinder and a pair of chambers (26A, 26B), one of which is located on a first side of the piston and the other of which is located on a second side of the piston, and which is constructed and arranged to provide non-electronically controlled hydraulic damping continuously over the range of dorsi-plantar flexion as the piston reciprocates in the cylinder, and an adjustable valve arrangement controlling the flow of hydraulic fluid between the pair of chambers (26A, 26B), for preseting flexion damping resistance such that said ankle joint is subject to hydraulic damping whenever the ankle joint is flexed and during walking the resistance to ankle flexion is predominantly provided by hydraulic damping, wherein the joint mechanism includes a first flexion limiter that limits dorsi-flexion of the joint mechanism to a dorsi-flexion limit and a second flexion limiter that limits plantar-flexion of the joint mechanism to a plantar-flexion limit, thereby defining said fixed range of dorsi-plantar flexion, the first and second flexion limiters comprising mechanical end stops of the joint mechanism. a foot component, and an ankle joint pivotally mounted to the foot component at a first pivotal connection and having a fixed range of dorsi-plantar flexion about the first pivotal connection, the ankle joint being pivotally connected to the foot component at a second pivotal connection displaced in an anterior-posterior direction from the first pivotal connection, the ankle joint comprising a non-electronically controlled joint mechanism providing resistance to ankle flexion, wherein the joint mechanism comprises: a hydraulic linear piston and cylinder assembly having a piston, a cylinder and a pair of chambers (26A, 26B), one of which is located on a first side of the piston and the other of which is located on a second side of the piston, and which is constructed and arranged to provide non-electronically controlled hydraulic damping continuously over the range of dorsi-plantar flexion as the piston reciprocates in the cylinder, and an adjustable valve arrangement controlling the flow of hydraulic fluid between the pair of chambers (26A, 26B), for preseting flexion damping resistance such that said ankle joint is subject to hydraulic damping whenever the ankle joint is flexed and during walking the resistance to ankle flexion is predominantly provided by hydraulic damping, a hydraulic linear piston and cylinder assembly having a piston, a cylinder and a pair of chambers (26A, 26B), one of which is located on a first side of the piston and the other of which is located on a second side of the piston, and which is constructed and arranged to provide non-electronically controlled hydraulic damping continuously over the range of dorsi-plantar flexion as the piston reciprocates in the cylinder, and an adjustable valve arrangement controlling the flow of hydraulic fluid between the pair of chambers (26A, 26B), for preseting flexion damping resistance such that said ankle joint is subject to hydraulic damping whenever the ankle joint is flexed and during walking the resistance to ankle flexion is predominantly provided by hydraulic damping, wherein the joint mechanism includes a first flexion limiter that limits dorsi-flexion of the joint mechanism to a dorsi-flexion limit and a second flexion limiter that limits plantar-flexion of the joint mechanism to a plantar-flexion limit, thereby defining said fixed range of dorsi-plantar flexion, the first and second flexion limiters comprising mechanical end stops of the joint mechanism.