My husband and I are retired and we love to go on 3 to 4 hour hikes several times a week. We like to have a small lunch about halfway through the hike so I wanted a small pack that could accommodate a drink, snack bar, and a sandwich. In addition I usually carry a small bug spray, hand sanitizer, lip balm, small suntan lotion, tissues, comb, antiseptic, a few band aids, keys and my iPhone 6. Not only do these items all fit in my pack, but there is room for more. There is one large compartment whSee full review