A head-mounted display including a front, a back, a first actuator, a second actuator, a first adjustable member extending between the front and the back and operably engaging the first actuator, and a second adjustable member extending between the front and the back and operably engaging the second actuator. The first adjustable member and the second adjustable member may be adjustable in length via the second actuator to vary a gap distance between the front and the back. In some embodiments, the head-mounted display may include a wire routing assembly for routing wire(s) between the front and the back of the head-mounted display. Additionally, in some embodiments, the head-mounted display may include a harness for engaging a user.