clothing on Navigator

We are on the July 15 Navigator trip. My husband really doesn't want to bring a sportcoat. How does everyone really dress on the informal nights on the Baltic itinerary?

We will be in the baltics next week and our itinerary is slightly different as we have 12 nights aboard the Voyager. My husband will take his tuxedo for formal nights (we have two) and will probably wear open collar shirt with sports coat the country club casual nights. inforaml nights, coat and tie. The dining room gets cold so a jack is good alternative.

Cheers, Pam

PS Have a great cruise!

In my last two trips to the Baltic, the majority of men on informal nights wear a jacket and tie. Women are fairly dressy also. (especially on Regent)