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?
Fayt Leingod - Star Ocean:Till the End of Time - Making armor
Faize Sheifa Beleth - Star Ocean: The Last Hope - Working on bracers, rapier