Abstract: An athletic shoe midsole includes a hard elastic stabilizing member that extends generally around a central opening through which a relatively soft elastic cushioning layer extends downwardly from a heel center beneath a wearer's calcaneus bone to thereby form a heel-cushioning pillar. The stabilizing member extends along lateral and medial sides of the pillar to prevent pronation and supination, and preferably includes a protrusion that extends into a depression in the heel-cushioning pillar in alignment with a line of flexure of the heel region to thereby affect flexure characteristics of a heel region of the shoe. The midsole may also include flex grooves, channels, and/or notches aligned with the line of flexure for promoting the desired flexure characteristics in the heel region of the sole and for helping decelerate the wearer's heel-toe gait during the stance phase of the wearer's gait cycle.