It is a bit too wide in the shoulders but still seems to fit acceptably. It's very hard to tell if you've got room in the chest though. Can't yu just try on the next size down ? B
I tried = it was better for shoulders, less confortable on chest and too tight on waist but it was a longer lenght (28 instead of 26) so i wasn't able to compare. The 42 = ok with jumper+shirt+fur lining Too loose with just a shirt or without the fur. The 40 = ok without the fur lining but a little tight with it. May be the leather will stretch with time?