Great pack! This pack is awesome in the fact that it is basically waterproof and you don't have to carry a rain cover. I say basically because when things get really bad water can find its way into anything. I do think it is a little over priced for the quality, and you could find packs (Osprey) that are much more form fitting and hug the body better. Overall it is a good pack, and probably the best for areas such as ice climbing when putting a pack cover on is not an option.

Alright, so after a full summer of hiking with this pack, i am going to update the review that i already posted. The one drawback to this pack is that the designers put a "waterproof" zipper on the side of the pack. You cannot really see this zipper in any of the views. It access the main storage section. This is a horrible design. I tested it out in my bathtub before i took it to some slot canyons in SoUT, and it leaked. I tried it out anyways in the canyons (double dry bagged) and it leaked again. I am not sure what they were thinking putting that zipper there, but the description that says "no the bag is waterproof" is not true. The smaller bags such as the naos 55 do not have this zipper, and i would def believe the waterproof rating on those bags.

Other than this zipper, the bag is spectacular. For the bags size and what you can put in it, i dont think there is a finer bag on the market.

Took this on the maiden voyage the other day. I went on a 22.5 mile hike with 49.2 lbs inside this pack and it performed beyond expectations. It is a ton of money to spend on a product, but if you can even come close to affording it, I would not hesitate at all. The pack is def worth the money. My shoulders were not very sore at all, and i am just a little guy (5' 8" 140lbs) so the pack i was carrying was more than 1/3 my body weight. My back and shoulders felt fine the next day. I would rec this pack to anybody.

I hike in the winter and winter gear can be bulky. This large pack is 5370 cu.in. and 6 lb. 4 oz. That's not heavy for a large waterproof pack. I have had it out in light rain and snow and it does well. I have not been out in a bad storm such as the one that convinced me to buy this pack, but I think it will be waterproof. A waterproof pack gives you options in bad weather that save weight. You can sleep in a bivy, store your stuff in the pack while you sleep, and not worry about it getting wet. The more I use it, the more I like it.