I have owned many backpacks, but when it comes to day packs, this one beats them all - and by far! The fact that it doesn't have one of those 'arched backs' structure makes it so much easier to fill, and it does take a lot more content than my previous two 35litre day packs. I love the additional zip around the front flap that lets you access all of the content from the front. Also, I'm a fan of all those useful pockets; one on the belt for permanent access, one on each side (a meshed for bottles and a zipped one), 2 little pockets in the top flat, and there's the elasticated mesh at the front that's big enough for a climbing helmet. Even with the pockets full, compression straps ensure a compact pack.
The comfort is second to none - the hip belt gives the bag perfect stability even when trail running. Oh, and I'm a petite girl (the bag is meant for men but it fits me like a glove).
I've taken it climbing (enough space for a helmet and a rope + 1 ice axe loop and 2 elasticated loops), trail running and to the office (accommodates a 17' macbook pro and many books).
All in all, my new perfect pack - and my boyfriend's, who borrows mine although he's got 4 backpacks of his own!
Julie, London