Ok I am right now looking at www.revolveclothing.com and a description of one of the jeans, notably the ES Hemingway. They say, 18" in the knee breaks to 20" at the leg opening. How do they come to 18" and 20"? I would like to know how wide the bottom part of the jeans are and at the knee but 18" and 20" just seems incorrect, yet I see this all the time. When I measure even my largest jean bottoms, my Diesel Kurratts they are only 10" at the bottom and that is quite wide... Just wondering if there is some magic formula that I am missing.