Consequently, how should a coat fit a man?
Body. When buttoned, the jacket should lightly hug your midsection, but not feel tight or constricting. There shouldn't be a whole lot of “play” if you were to put your hands in the jacket and pull forward. The jacket shouldn't be pulling at any of the various buttons on the front, making any creases in the front.
Secondly, how do you know if a jacket is too big? The shoulders of the jacket should sit no further than ½ inch over your own shoulders. There should be a smooth line from collar to shoulder. Rumpling and dips in the line from collar to shoulder are a sign that the jacket is too big at the shoulders.
Similarly, should a winter coat be tight or loose?
When it comes to buying your winter coat, you should always buy it big enough so there's room for all your important layers! Yes, you should buy a winter coat one size bigger!
Should I buy a coat one size bigger?
Should you buy a coat a size up or down if you are between sizes? Definately, buy the coat slightly larger. Not only will it keep you warmer because of the air pockets on the inside, but it will also allow you to wear layers when the weather gets really cold.