Some pics - sorry for not being able to figure out how to use the spoiler tag.
Medium classic crew for reference. 5'8 160lbs, broad shoulders, athletic build. The sweater just bunches too much underneath the armpits and fits a bit too slim to be comfortable. I think I need to size up at least 1 for it to fit like the model photos. Might be able to get away with layering a tank if you go TTS, but i think you would have issues with other tees.