I found I needed much much less than what I thought. But I had to have the basics. , weather protection, and things so I could be clean and sleep comfortably at night. Things to clean my body and my clothing each day. Simple first aid , some compede, leukotape, Tylenol and anti diarrhea med. you do not want to have that issue and have to wait until you find a pharmacy to get meds. An energy bar if needed and water bottle. That was in my pack. I also needed my trekking poles. And some recovery sandals ( very light ones ) for evenings. I have a tiny camera that clips to the bill of my hat and my phone.