Abstract: A shoe includes an interchangeable heel having a shoe body configured to accept a foot of a person. A protrusion is permanently attached to a bottom heel surface comprising two oppositely disposed straight edges separating and contiguous with two oppositely disposed curved edges. A channel is disposed within the protrusion between the two oppositely disposed curved edges. A removable heel comprises an open-ended slot configured to securely accept the protrusion. The removable heel is rotatably attachable to the protrusion. The at least one stop is attached to the removable heel and configured to prevent translation of the removable heel relative to the protrusion. A flexural lock attached to the removable heel is configured to engage the channel and prevent rotation of the removable heel relative to the protrusion. The flexural lock may be manually disengaged by the person to release the removable heel from the protrusion.