Abstract: An article of footwear includes a closure mechanism with a guide rail, a plurality of carriages disposed on the guide rail, and a strap connecting the carriages. The carriages are movably coupled to the guide rail to adjust the fit of the article of footwear. In some instances, a guide rail includes a first end, a second end, and an intermediate portion disposed between the first end and the second end. The first end of the guide rail is disposed on the lateral side portion of the upper, the second end of the guide rail is disposed on the medial side portion of the upper, and the intermediate portion of the guide rail extends from the lateral side portion of the upper, around the heel portion of the upper, and to the medial side portion of the upper.