Although it has input from three ultra runners, this list may not be comprehensive and obviously it changes depending on the course (loop, trail etc), distance between aid stations, weather conditions, your own preferences and so on. The main thing is totake a really good crew who will be in charge of:
Anti Chafe equipment eg corn starch, petroleum jelly
Food (medicinal) eg licorice and ginger candy (good for digestion)
I am ultra runner from Australia. I am into motivational exploits involving any sort of physical feat that is inspirational and positive. On the side I work as a motivational speaker, business speaker and trainer, keynote speaker and youth speaker.