Rule #3: Match Formality Between Pieces. The third and final rule for following dress codes is to “match formality between pieces.”. Don’t wear black Oxford dress shoes with jeans. Likewise, a top hat with a sport coat is going to look out of place.
At night, nice jeans and nice tops are perfect for eating in the main dining rooms. On Carnival cruise formal nights, known as "cruise elegant" nights, cruisers wear everything from slacks with nice shirts to tuxes and ball gowns. However, most passengers stick to clothes that fall somewhere in the middle. Voyages of six nights or longer will aVXnJ.