I had a Kelty external frame pack in the early 90s when I was in Boy Scouts. Afterwards I went in the military and have carried an ALICE pack since, until now. I got the 85L in Asphalt. A Major selling point for me was that it has external pockets for gear I’ll need quick access to such as water bottle, rain gear, compass, pocketknife, headlamp, firestarters, first aid kid, bug spray, and sunscreen. It doesn’t have a bunch of stupid zippers going to the main pack and making weak points that willSee full review