The order page lists this slipper as Medium, which is size 7 - 8, but what arrives is a small, size 5 - 6.

There is no way to change the size to actually get a Medium.

Once it is in the cart, the description changes to Dearfoams Women's Pile Boot Slipper etc etc... S M.  Small.

A size 7 - 8 would have fit me perfectly, but there is apparently no way to get a medium. Save yourself the hassle.