I bought this pack to use for day-long excursions (hunting) that could inadvertantly become longer. I wasnt expecting much for the money but I was pleasantly surprised when it arrived. I have a similar lumbar pack that costs 5 times as much and this little pack rivals it well.
The pack contains two main compartments, an ancillary compartment on one side, and a bottle holder with elastic retention strap on the opposite side. In the main compartments I fit 2 emergency ponchos, 2 mylar emergency blankets,1 AA maglite, 1 pair wool socks, 1 pair gloves, water purification tablets, compass, topo map, 25 feet of 550 paracord, fire steel, 3 protein bars, 3 pairs of insta-heat hand warmers, and there is still room for more! In the exterior ancilarry compartment I fit an extra 10 rifle rounds and a small monocular with room to spare. In the bottle holder I fit a 32 oz. nalgene bottle without issue. Like I said, the pack is spacious.
The pack has some extra loops on the exterior for attaching things, and the padded hip pads make it comfortable to wear with some weight in it. The belt must be at least 48 inches long so it will work with larger people.
Great Value for the Price!