You should also bring a daypack or other bag which you can put miscellaneous articles. You may find it easier to travel to Gustavus with a single large piece of luggage. We will arrange storage here of any luggage you cannot take on the expedition. The particular quantity and combination of items you bring is up to you. Be sure, however, that you bring enough clothes to be warm.
Thermal underwear is highly recommended.
Bring an extra layer you do not really think you will need. No cotton please. The warmth, cushion, and absorbency of thick wool socks are important. Day Pack Day Pack-for having things close by in the kayak. If you are on a very short trip jeans will work fine.