Evening: Most nights require resort attire; however, Costa hosts one or two Elegant Evenings per cruise, when men may wear dark suits or tuxedos and women can wear evening gowns or cocktail dresses.

As the weather gradually warms up, investing in the best resort wear for men can be the wardrobe refresh you need. And no, you don’t need a 10-day getaway planned to pick up the best resort wear.

While the formal dress code has relaxed a bit (you're unlikely to see many guys in tuxedos with waistcoats or tails—that's more of a U.K. thing), formal still calls for classic evening wear.

Seabourn Cruise Line Dress Code — Daytime: Casual resort wear like jeans and shorts are welcome in all lounges and dining venues on Seabourn Cruise Lines ‘ ships.