I have a 45 inch chest and am 6'1 with a medium build. This coat fits snugly in the shoulder area with a slight restriction in shoulder movement. Other reviews stated this coat ran large but to me it is fairly true to size. I did not order the X large believing it would be too loose. This is a nice coat that I will wear to my kid's concerts. It seems like a good way to dress up a pair of jeans. It is well worth the price. I am satisfied for the most part.