I do a lot of hiking because I study geology. There are a lot of great things about this bag. Main concern was the support. I just wanted a daypack that could handle carrying rocks. This bag holds up so far. It doesn't hurt my back like other bags do. The side pockets are awesome. I hate mesh! But the side pockets can hold anything and they're tall so they can handle big items and they don't tear as I scramble through scrub oak. Bottom line: I'm rough on my packs, but this one is tougher. Love it!
However, this bag isn't perfect. It's the best out there I could find. And trust me, I've been looking for months. The hydration pack only fits up 2 L. The color is a little too bright but since the bag is generally so awesome I'm keeping it. I wish it had more pockets.