We are leaving on the Holiday on June 25 and I know my husband will wear a suit for formal night, but can he get by with a nice button down shirt or polo shirt with nice slacks the other nights in the dining room?
Absolutely, Docker-type pants with a polo shirt are perfect for men to wear at dinner on non-formal nights. Business casual attire is the key for dinner on a cruise, ladies are fine with dress slacks and a nice blouse or cotton dress, etc., especially if you are traveling in the Caribbean.
Holiday is so relaxed! We wore jeans and nice tops to dinner most nights. Of course formal night was formal night, but this is the most casual I have seen people dress for dinner on a cruise. Have a great cruise!