The Abby Articulating Ankle Foot Orthosis (AFO) from Anatomical Concepts is a multifunctional, posterior dual-jointed device for the early stages of rehabilitation. With a stable base of support and a new nonskid low-profile plantar surface, it is designed to replicate the biomechanical effects of a semirigid or posterior leaf spring AFO. Foot length, calf height, plantar/dorsiflexion, and varus/valgus alignment can all be adjusted. Functional knee and ankle joint positioning helps facilitate clearance during swing and knee stability during stance. The Abby includes a heat-moldable foot orthosis. An open toe shoe is also included.