Shoot.
I'm 6'1" and about 160lbs and I wear a Medium T-shirt. If I buy a large T-shirt, I look like a slob.
However, I wear a large jacket, LS shirt, sweatshirt, raincoat, etc. large pretty much everything else. And they all fit well.
So, how do I size a fleece vest without buying a measuring tape and going full tailor? Anyone with similar dimensions to me have any advice?
I want to look like this:

Not like this:

Thanks!
M

