I was at a breakfast meeting today, unkilted , and was talking afterwards with one of the guys that knows I wear a kilt often. He was talking about weather and cold. I lined out for him about 4 yards on the table and told him to double it. Then let him know there were 3 basic weights, 10, 13 and 16 oz. He understood fabric weights from a previous job and when I let him know it was wool, he absolutely understood why it was warm.