I am really impressed by this bag. I bought it a couple of days ago (early february in SLC, Utah) and am really excited to use it this spring/summer. The bag feels very durable and yet seems quite comfortable for carrying around sporting goods/things that need to be kept dry while going into areas that could be wet.When i purchased the bag, I didn't realize that it comes with a laptop holder that velcros inside? Perhaps this will be useful for people going into the field for long trips, but personally I would be using this in an environment where I wouldn't need/want a laptop. Each to their own. This bag is large enough to hold gear/food/supplies for a day trip/exploring in the nature. There are more straps than I had expected which is great, and I am sure they will be used later on. I just bought a 20L bag as well from Rockagtor and put it inside for a perspective. (See Pictures) Also I thinik the bag is bigger than it looks when it is on me, I am 5' 10", but I rolled the top up a few more times than was probably necessary.My boss's boss suggested that I look at them, as he had bought one to use to go canyoneering with rock climbing gear in areas where there is water up to mid chest (He is about 6' 2")I don't have the gear to go canyoneering, but I will definitely be using this bag when I go exploring more in the PNW, Zion's and also back up into the Uintas more this spring/summer.