I will be section hiking the AT starting next year around October. I will be hiking for about a week. But I am not sure what volume backpack I will need. I am trying to go ultralight I am thinking of getting the golite jam 50 50l 3050 in. Do you think this will be big enough or should i move up to a 70l...Golite pack address below
http://www.golite.com/Jam-50L-Pack-Unisex-P46812.aspx