Waterproofing for less weight than the Naos series.
I once was in love with the Naos series of packs, and after owning one, I decided that it was too heavy for me (had the 70L). I came across a deal on the Acrux 40 and decided to give it a try. I have found that it has all of the features that I wanted in the Naos packs has but with less weight. I use it backpacking for all of my treks where water/rain is an issue. I am able to fit all of my stuff into the 40L of space, but I am not a Jetboil kind of guy so I would recommend that you experiment with packing it before you buy if you are thinking of using as a long distance hiking pack like me which is not it's intended use. I attach my z-lite sleeping pad to the back using the rear bungee. The only thing that I miss from the Naos was the strap that brought the top of the pack closer to my shoulders which made a noticeable comfort difference. So, if you are like me and you want a solid backpacking setup that is neither too heavy nor too cheap (quality wise), I would recommend this pack.