During the day, passengers on Mariner dress with style: Think country club or high-end resortwear, rather than pool or beachwear. Women opt for capri pants, slacks or jeans with blouses or T-shirts, while men might wear shorts or khakis and Polo shirts. Poolside, swimwear is the norm, with the addition of cover-ups and sunhats for women. Bathing suits aren't allowed at indoor venues.
At night, after 6 p.m., everyone wears what the line calls "elegant casual." For ladies, that means a skirt or slacks with a blouse or sweater, pantsuit or a dress. Men wear slacks and collared shirts, and while sports jackets are optional, a number of men wear them. In fact, many passengers still put on some pretty fancy clothes ahead of dinner. Jeans, T-shirts, baseball caps, shorts and sneakers aren't permitted in any public area after 6 p.m.
On sailings of 16 nights or longer, passengers will have two formal nights, and they dress to the nines: tuxes or full suits for men, and cocktail gowns, formal pantsuits or dress sets for women.
On the final evening of each cruise, when everyone is packing, the dress code is "relaxed casual," a toned-down version of elegant casual, where comfort takes precedence over formality. That said, most passengers adhere to the elegant casual code, even when it's not required.