Abstract: A shoe and an apparatus for selectively extending spikes from the bottom of a shoe. The shoe has a sole having a longitudinal direction a plurality of spike apertures. The apparatus comprises a plurality of spike assemblies, each being locatable within one of the spike apertures an elongate member extending substantially parallel to the longitudinal direction of the shoe and a cyclically alternating positioner for moving the elongate member between the first and second positions. The positioner including an actuating button. Depressing the actuating button a first time causes the positioner to move the elongate member to a first position whereat the spikes are extended from the sole. Depressing the actuating button a second time causes the positioner to move the elongate member to the second position whereat the spikes are retracted into the sole.