This reply is useless without pics!!!!!!!!!!!!!!!!!!!!!
The caption on this definition grossed me out about the men part:
Definition: Simply put, a mule is a backless shoe.
An increasingly popular choice for men as well as women, mules can be sporty, like mule sneakers; or elegant, like the ones pictured here - or they can land somewhere in between.
They can have high heels, low heels, or chunky heels, but if the back is open, they are considered mules.