Just what I was looking for! I've always worn a size 12, but my right foot is a 1/2 size bigger. Consequently, the toes on that foot will eventually get sore from being crammed in there. Most companies have not made size 12 1/2 for some reason. Maybe I just wasn't looking in the right place before.
I also have to wear inserts because of a missing fat pad on the right foot. I usually have to remove the existing one and replace it with mine, but these were so thin I didn't have to do that.