You will need a range of attire- my list- lightweight lined jacket, variety of sweatshirts, tshirts, knit hat gloves, rain gear, 2 pair of walking shoes. I never take jeans- but always lined and unlined wind pants leggins. Along with your regular dining attire. KEY is quick drying and lightweight. I also always do my laundry off ship in Skagway and along my interior travels. Cuts way down on bulk.

I find a lot of people are under prepared. There is plenty of shopping available if needed.