I knew exactly that DW would come through with the photographs from his triple-tagged and relational database indexed files. Too funny, too true.
Many off the rack items are cut incredibly poorly, I would not hesitate for a second to get a bespoke peacoat (or reefer or whatever you want to call it). In fact, I shall do just that.
I wouldn't waste a second on linings that you are going to sweat on and not see. Presumably this will even go over a sweater or sportcoat? Focus on mobility.