For those who wondered about Tamara Mellon and her new direction after Jimmy Choo, here it is: Sweet Revenge, a legging-boot combination (basically a leather footie. We should be thankful there's no top, I guess). This thing comes in two pant sizes and is recommended to be worn with "a sweater over it or a big man's shirt". Considering a good fit is nearly impossible with only two available sizes, a covered crotch is pretty much a must.
$1995 at Net-a-Porter and Sweet Revenge is all yours.