I don't know, maby I do. A chart saying the zipper length and the chest size does not mean anything to me. For example- when I ordered things off this past winters line I used the sizing chart. When I got the pieces, they all fit like shit and I wanted different sizes. Unfortunatly by that time, most of the good sizes were sold out. I would never buy jiberish just to re-sell it, whether it be for more or less than retail. Thats all that needs to be said.