Is the jacket really wide in the chest and...
Is the jacket really wide in the chest and waist regions or not too wide? and also what is the lenght difference between the large and X large?
AG jackets typically fit loose, they are not crazy wide across the chest or the waist but are not fitted by any means. The XL is jut a bit bigger over all. I'm 6' even and about 170 lbs. I wear a Large, I could wear a medium though. I just like to run it a little baggy.