An article of footwear comprising: an upper having a first portion, a second portion, and an opening at least partially located between the first portion and the second portion, the opening being adjustable between a first size that provides an open configuration and a second size that provides a closed configuration, the first size being larger than the second size; and a closure mechanism moveable between an unlocked position and a locked position, the closure mechanism including a locking element coupled to the first portion of the upper and a projection coupled to the second portion of the upper, wherein the projection is moveable in a first direction relative to the locking element to engage with the locking element, thereby moving the closure mechanism from the unlocked position to the locked position and moving the upper from the open configuration to the closed configuration, wherein the projection is moveable in the first direction relative to the locking element to disengage with the locking element, thereby moving the closure mechanism from the locked position to the unlocked position and allowing the upper to return to the open configuration, wherein the locking element comprises a plurality of first tabs, and wherein when the closure mechanism is in the locked position, the first tabs engage with the projection to restrict movement of the projection in a second direction relative to the locking element, wherein the locking element comprises a plurality of second tabs, and wherein when the closure mechanism is in the locked position, the second tabs engage with the projection to restrict movement of the projection in the first direction relative to the locking element, and wherein the closure mechanism further comprises a main platform, and the locking element further comprises a plurality of flanges spaced apart from the main platform, wherein the second tabs of the locking element extend at an angle from the flanges to the main platform, wherein the unlocked position of the closure mechanism is a second unlocked position, and the closure mechanism is movable from a first unlocked position to the locked position and from the locked position to the second unlocked position, and wherein the closure mechanism is configured such that the projection passes from a second position on the main platform, to the second tabs, to flanges, and to a first position on the main platform as the closure mechanism is moved from the second unlocked position to the first unlocked position. an upper having a first portion, a second portion, and an opening at least partially located between the first portion and the second portion, the opening being adjustable between a first size that provides an open configuration and a second size that provides a closed configuration, the first size being larger than the second size; and a closure mechanism moveable between an unlocked position and a locked position, the closure mechanism including a locking element coupled to the first portion of the upper and a projection coupled to the second portion of the upper, wherein the projection is moveable in a first direction relative to the locking element to engage with the locking element, thereby moving the closure mechanism from the unlocked position to the locked position and moving the upper from the open configuration to the closed configuration, wherein the projection is moveable in the first direction relative to the locking element to disengage with the locking element, thereby moving the closure mechanism from the locked position to the unlocked position and allowing the upper to return to the open configuration, wherein the locking element comprises a plurality of first tabs, and wherein when the closure mechanism is in the locked position, the first tabs engage with the projection to restrict movement of the projection in a second direction relative to the locking element, wherein the locking element comprises a plurality of second tabs, and wherein when the closure mechanism is in the locked position, the second tabs engage with the projection to restrict movement of the projection in the first direction relative to the locking element, and wherein the closure mechanism further comprises a main platform, and the locking element further comprises a plurality of flanges spaced apart from the main platform, wherein the second tabs of the locking element extend at an angle from the flanges to the main platform, wherein the unlocked position of the closure mechanism is a second unlocked position, and the closure mechanism is movable from a first unlocked position to the locked position and from the locked position to the second unlocked position, and wherein the closure mechanism is configured such that the projection passes from a second position on the main platform, to the second tabs, to flanges, and to a first position on the main platform as the closure mechanism is moved from the second unlocked position to the first unlocked position.