felix03 - the Vanson Chopper jacket looks good on you! I have the same jacket, off the rack, no two-way zipper and plain black cotton lining. It's super thick, heavy and the BOMB! Will need to wear it for a while before it's broken in. Interestingly, I'm 5'10" or so, weigh around 178 lbs. Mine's a size Medium too and it fits me well, on the snug side - cannot layer much underneath.
Oh, and that's a really neat bike too! If I buy another bike in the US I'll seriously have to consider the Moto Guzzi V7 alongside my first choice Triumph Bonneville/Scrambler. Current old BMW tends to be a bit quirky at times! Back in Asia I'm making do with a Royal Enfield for now.
2wheelgrplr, looking good! Fits you well. Yeah, I got the 2-way zip to prevent the jacket pushing up into my chin in the riding position. I hear you about the break-in. It's gonna be a long struggle but I'm looking forward to it.