Abstract: A reel based closure device for tensioning a tension member is described herein. The reel based closure device includes a housing that defines a vertical axis, a plurality of teeth operably coupled with the housing, a spool rotatably positioned within the housing, and an engagement member comprising one or more teeth that engage with the plurality of teeth during a rotation of the spool. A dial or knob is operably coupled with the spool so that a rotation of the dial or knob effects the rotation of the spool to wind the tension member about the spool. A length of each tooth that is operably coupled with the housing is substantially longer than a length of each tooth of the engagement member.

Abstract: A boot, such as a ski boot, may include a lower portion or shell that is configured to accommodate a foot and an upper portion or cuff that extends upward from the lower portion and that is configured to accommodate a lower leg of a wearer. The boot may also include a tightening system that is coupled with the lower portion of the boot in order to close and tighten the lower portion about the foot. The tightening system includes a reel based closure device and a tension member that is operably coupled with the reel based closure device so that an operation of the reel based closure device effects tensioning of the tension member. The tightening system also includes a plurality of guide members that route or direct the tension member along a path and a terminal member that is fixedly coupled with the tension member.