US Patent 10159302 Footwear having an adjustable length feature

An article of footwear including a length adjustment mechanism is disclosed. The article of footwear can include a sole portion with one or more anchors connected to the sole portion. The article of footwear can also include a heel cup capable of moving between a fore position and an aft position. This can be accomplished using one or more length adjustment mechanisms that each slidably engage the one or more anchors, such that they have an unlocked state and a locked state. In the unlocked state, the heel cup can move with respect to the one or more anchors; and in the locked state cannot move with respect to the one of more anchors.