I was looking for a pack that I could take out for longer day hikes (14er climbing, etc.) that could fit my sleeping bag and a bivy if I wanted to stay out overnight. I bought the M/L size Fluid 32L pack and could not be happier. I am 5'9" and ~ 155 lbs and the pack fits like a glove. The storage size is ample, the straps are soft, and the carry is comfortable. The only down side is that I haven't been able to find a pack cover yet that will stay on in the wind, which can be an issue at elevation.If you're looking for a pack that can handle anything less than 3 nights out, this is the one for you.
Love this bag, I can cram everything I need for the cliffs in it, and then some. The pockets on the belt are great for things you need accessible, along with the one on the back. Also the bag for garbage with the "leave no trace" basics on it is useful, and cool.
"Made for the trekker/backpacker/cyclist who wants high quality without spending tons of money."
High scores in durability, comfort, storage space, pocket placement. It had enough storage for the supplies I needed for 90 mile hike in which I took a lot of photo gear. One of the cool things about this bag: it's pretty darn versatile. I was toting a 10lb. tripod and this bag was able to handle that and still be pretty comfortable to wear - which speaks to its great design. This is a great pack, and one that's worth the extra $50 over something cheaper with similar dimensions. Just to be fair, though, this doesn't mean it's indestructible. Mine has a few frays in various spots, but the material is strong enough that the frays haven't morphed into gaping holes.