Allow me to break this down a little for you: he appears to be wearing something green- a tie? mock turtleneck? I can't tell. Then we have a collared shirt over that, a sweater over that, a blazer over that, and a vest over that! Well done, sir. Way-to stick it to the Michelin Man! - otherwise known as the puffer jacket. He has conquered the cold without the bulk and to that I say: good for you, but I would be claustrophobic.
Can you wear this many layers without looking like the Goodyear?