Constantly slipping, poor shape
The shape is just the regular Fei Yue, with the back cut out. It hasn't been adjusted to be shaped like a real mule, where there is space for it to better hold your foot from the front. Very uncomfortable.
Rated 1 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
Rated 2 on a scale of minus 2 to 2, where minus 2 is Narrow, 0 is Just Right and 2 is Wide