Being a rebel and wearing my Merino closed today because it's -22 C. People would stare if I wore it open. That said, it's a very warm coat when closed due to the thick liner. It looks fine if one has a skinny body.
Thank you! My main problem is size as I wear US 38S/IT 48S. I'm also slow on the draw on outerwear. My only Eidos piece is the field jacket via MTO. Given how well it fits me, I believe Eidos suits and sport coats will fit me just fine.