In embodiments, an adjustable orthotic foot device may include a shell layer including an upper surface and a contoured lower surface, and a soft insole layer coupled to the upper surface of the shell layer, the soft insole layer defining an arch support structure on an upper surface of the soft insole layer along a medial edge of the soft insole layer. The adjustable orthotic foot device may further include one or more structural support inserts configured to be removably inserted within a pocket formed between the shell layer and the soft insole layer in order to adjust an arch height of the arch support structure. In embodiments, the one or more structural support inserts may be defined by a curved lateral edge and a convex curved medial edge.