In one embodiment, a stimulation lead for applying electrical pulses to tissue of a patient, the stimulation lead comprises: a plurality of electrodes on a first end of the lead body a plurality of terminals on a second end of the lead body a lead body comprising a flex film component disposed within insulative material, wherein (i) the flex film component comprises a plurality of electrical traces, (ii) the plurality of electrical traces electrically couple the plurality of electrodes with the plurality of terminals, and (iii) the flex film component comprises a plurality of bends along a substantial length of the lead body wherein the stimulation lead is adapted to elastically elongate under application of stretching forces to the lead body without disconnection of the electrical connections between the plurality of electrodes and the plurality of terminals through the electrical traces of the flex film component.
