An ankle-foot orthosis for a lower leg, ankle, and foot of a patient, the ankle-foot orthosis including: a foot plate； a calf-cuff member； and a strut member extending between the foot plate and the calf-cuff member, the strut member coupling to a posterior side of the foot plate and the calf-cuff member, the strut member being formed from layers of carbon fiber and at least one layer of a thermoplastic material.
