Though it is a bit large, this could also be used as a summit pack that was carried along on a trip where you traveled with a backpack and left the final camp to climb the peak with your equipment basics, and you still had your ten essentials for emergencies if you became separated from the camp below. But there were generally (in the days when I was climbing) smaller summit packs in use for that last push. I just couldn't afford so many packs so took this one along instead.

SRS