Footwear having interchangeable heels, includes: (a) a top component having a back section, a middle, a front and an upper section for encompassing a foot, the top component having an underside shape and contour, and having at least two separate connect mechanisms for connection to a bottom component; (b) a bottom component having a having back, a middle, and a front section, the bottom component having a topside shape and contour sufficiently coinciding with the top component underside shape and contour so as to nest with one another, and having at least two separate connect mechanisms corresponding to the at least two separate mechanisms of the top component for connection to it; and (c) at least one locking mechanism.