Extra bungie cords, comfortable boots, warm socks, your most relaxed fit jeans, warm jacket, a couple sweat shirts, riding gloves, a few baggies and a rain suit. Won't always be dry and 80 degrees. If your bike has a sissy bar, find a sleeping bag to strap on behind you to give your back some support or use your nap sack. A small digital camera with fresh batteries inside a baggie stowed in a handy spot outside you nap sack. Same for cigarettes and lighter if you use them. A map and /or gps. If you are not experienced riding the Parkway, it is easy to get behind on your steering while sightseeing. Be safe.