These fit more-snugly, closer to the form.  Neck hole can be tight fresh out of the closet. Great feel to the cloth, though not super-heavy.

For indoor bicycle use, I like 'em.  I notice the arms' snugger fit when lifting or using the elliptical, so they're not a gym shirt for me.

I don't wear logo items as casual wear, so I don't have a report on their appearance with bluejeans.