Aww Joe, I am betting in real life those knights did have to have something between their armor and skin, otherwise, in all seriousness they would have gotten hypothermia which although would take longer is just as deadly as an injury in battle. I am thinking it would have been some wool fabric. Makes sense to me.
I think I like it when you get carried away. It is really amazing to see how people think and create. The end results are really wonderful!