This is a work coat - Not a going-to-the-mall jacket or a pretending to do something in the garage jacket or a jacket for the guy who thinks 55 degrees is cold out. If you have real work to do like cut fire wood, plow snow, trim trees, replace a water pump on your truck outside in 20 degree weather then this coat is a good choice. The lining is a double-edge sword. More warm than a smooth polyester lining but makes it difficult to take on and off. As to sizing, I call it right on, for a work coat. Order your regular size. Extra room is built in for layering. This coat is a good one for the guy with something to do.