What to wear with a cardigan (guy) quick 10 points?

because your cardigan is what will be the main focus for the top half of your body, i dont think you should go with a logo printed tee under, because that would take away from the really nice cardigan. i think it would look nice for you to wear the white tee under the cardigan with your dark blue jeans- its just a really cly, fun, and simple look that never goes wrong :)