Nice denim material and styling. I intend to wear it with just a tee shirt, and on occasion a long sleeve shirt. Fits okay with the tee, but is somewhat tight with the long sleeve shirt. I'm 5'7" and 170 lbs., and it fits okay, especially unbuttoned. I can't button the neck collar button though and the second button from the top pulls kind of tight across the chest. I have a slight, middle age belly, not a beer belly by any means, and it fits okay with the buttons buttoned. I would say though this is sized between a slim fit and regular fit if that makes sense. I you have a large chest or big belly, it will fit like a skinny jean jacket.