Various embodiments are described herein for a cuff unit that may be used with a Functional Electrical Stimulation (FES) orthotic system. One example embodiment includes a flexible housing that is releasably mountable on a user including a frame and a plurality of panels entirely contained within the frame. A battery module having one or more batteries is contained within a one or more of the panels. A stimulation module is coupled to the battery module and contained in one or more of the panels is operable to generate stimulation signals to be applied to the user. At least two contact members that are coupled to the frame and in electrical communication with the stimulation module are operable to apply the stimulation signals to the user.
