I bought this pack about 3 years ago intending to use it as a combination hunting pack/camping pack and as a bug out bag when nothing is in season, and I wanted something that would allow me to carry everything I'd need for long trips lasting up to 3 weeks. Added on the spike duffel which is perfect for carrying clothes and food. After a years worth of HEAVY and frequent use I just couldn't believe how well it was holding up. It can literally hold more gear than your body is capable of hauling through the woods for any period of time. But the fact that you're able to tailor that storage capacity down to a day pack is fantastic!!! With my old pack, once I'd setup camp and left the non-essentials behind, what was left inside would shift around causing issues with weight distribution and a few times it caused enough noise to scare off the animal I was stalking. Haven't had that problem ever since I changed to this pack. I LOVE that I can just pack the essentials into the tubes, tighten down the compression straps and I'm good to go. I have used this for another 2 years since then, and came back to the website hoping to buy a rain cover as my old one finally bit the dust, was disappointed they are out of stock right now, but since I was already here I couldn't help but leave a review. Awesome product!!!