Hiking has gotten carried away lately. Didn't know too much about choosing a good backpack. Except for when I was in the army a few decades ago. I was looking for something light, lots of pockets, a hydraulic tank and something that could distribute the weight properly. Gregory is a good choice! For me I would use this for longer day hikes. I bought this Nano Hydro 22 for shorter day trips. I love this brand!