A tightening device for tightening a ski boot includes an elongate panel having a proximal end and a distal end. The elongate panel is positioned about the ski boot's shell between opposing sides of the shell. A tensioning mechanism is coupled with the proximal end of the elongate panel. A tension member is operably coupled with the tensioning mechanism so that an operation of the tensioning mechanism adjusts a tension of the tension member. At least one guide member is coupled with, or positioned on, the proximal end of the elongate panel adjacent to the tensioning mechanism. The tension member is coupled with the guide member to route or direct the tension member between the opposing sides of the shell and along a portion of the elongate panel.