A shoe is provided with an ankle support member to reduce the risk of ankle injury. The ankle support member is a stiff resilient piece of bendable sheet material including a base portion, and a plurality of lateral and medial strips which are inclined upwardly and rearwardly. The ankle support member is bound together with artificial spider web silk for additional strength and flexibility. The base portion has a U-shaped horizontal cross section which extends into and is bonded to the shoe sole. Some lateral strips are connected to medial strips to form inverted support loops behind the wearer's heel. Other lateral and medial strips have free upper ends which are curved toward each other in a transverse direction, and their stiffness deters lateral movement of the ankle to reduce a risk of ankle injury.