A method, system, apparatus, and/or device for supporting a plantar flexion ridge. The method, system, apparatus, and/or device may include a leg calf shell further with a leg calf shell plantar flexion ridge at a lowermost point. The method, system, apparatus, and/or device may include a boot shell connected to a bottom portion of the leg calf shell. The boot shell may include a boot shell plantar flexion ridge at an uppermost point or the boot shell. The boot shell plantar flexion ridge may contact the leg calf shell plantar flexion ridge at a plantar flexion ridges region. The method, system, apparatus, and/or device may include a posterior stretch cord assembly. The first end of the posterior stretch cord assembly may attach to a back of the leg calf shell and the second end of the posterior stretch cord assembly may be attached to a back of the boot shell.