Listing #11 Black Swedish Hasbeens husband clog in size 40. I’m barely an 8 with a narrow foot and I got these to wear with thick socks. They worked but were still a little loose. I’d say they’re best for a 9 or maybe an 8.5 if you have a wide foot. If you also want to wear them with thick socks you’d probably be able to do it as an 8, as long as your foot isn’t too narrow. Hope that helps! These are in excellent shape! See pictures!