aivars wrote an answer about Norrøna Lofoten Gore-Tex Primaloft Jacket - Men's on October 3, 2012
I tried the jacket on in Germany. I am 6'4" and 230lbs. I wear a 46L in suits. I had on a t-shirt and cashmere sweater and XL fit comfortably. Sleeves are nice and long while body had room for a layer more but it wasn't overly roomy. If you have a bigger chest it may feel a bit cramped.