We are doing an Antarctic Expedition this winter. I will not be dressing for dinner like I usually do on Ocean Cruises. There just will NOT be room in the luggage! Black slacks and a couple of warm tops probably NO jewelry, one pair of ballet flats. I imagine my husband will take one pair of slacks and long sleeved polos, perhaps a button down shirt and he will NOT be wearing a ball cap ( one of biggest peeves in any of eating venues.) But I am not sure why jeans are easier than a pair of slacks to wear in the dining room. Plus jeans take so long to dry!