Jersey has nicely rounded shoulders, great for riding position. I wear US size 40 suit, 6' tall, 32" waist, 174 lbs. Ordered the L and it's race fit tight on shoulders, arms and chest. I'm just over 6' tall and the only complaint I have is that the length is not "race length" to match the upper portions fit. The tail is waaaay too long and made worse when you have gear in the pockets, it covers nearly 65% of my butt - too long. I'm not going to wear it again until I'm able to take it to my tailor and have a horizontal dart put in just above the pockets in order to keep my gear from bouncing around on the butt.
Aside from that, the style is great!