Hmmmm...I don't know if they have a name or not, but it looks like you could just get some short boots and remove the lacing, then tie the laces around the ankle. I'm not sure how well they would stay on your feet though. ^^; Sorry I couldn't be more helpful, maybe someone else will know?
F! Ardyn Izunia - Final Fantasy XV (drafting stages, designing fabric prints)
Anime Expo 2017