An appropriate cruise wardrobe in 2026 requires a "three-tier" approach: casual daytime, smart-casual evening, and one formal option. During the day, swimwear with a cover-up, shorts, and breathable t-shirts are the standard for the pool deck, but remember that shoes and shirts are required in all indoor buffet areas. For most dinners, a "Smart Casual" look—such as sundresses, skirts, or tailored slacks with a blouse for women, and chinos or dark jeans with a collared polo or button-down for men—is the perfect high-value choice. It is a peer-to-peer essential to pack one "Dress Your Best" outfit, as most 7-night cruises still host at least one formal night where suits or cocktail dresses are encouraged. Finally, if your itinerary includes Caribbean islands like St. Lucia or Barbados, leave the camouflage print at home, as wearing it is actually illegal for civilians in those nations. Packing a light sweater or pashmina is also a high-value tip, as ship interiors are famously kept at very cool air-conditioned temperatures regardless of the tropical heat outside.