One main compartment, two external stretchy side pockets, room for two one liter water bottles in the bladder holder, a bungee external jacket spot, trekking pole(s) holder, and two small zippered pockets is all that is needed for a 10 essential day hike! Room enough for those extra layers, lunch, snacks, hip pockets for chap stick tissue , camera, and a ditty bag. All in small 11 liter bag? Perfect!
This review was written in the old system and had content requirements that are different than reviews written today.