Don't let the pictures fool you -- this is a big bag with lots of space (especially if you are looking to use it for a dayhike pack). It's also super light (yay!), and fairly burly.
I have an XS torso, so this sooo didn't fit me -- even with the straps pulled as tight as they go, the thing felt huge on me. And when I loaded it, the lightweight pack's shoulder straps seemed to stretch so that it was sitting on the middle of my ass rather than on my lower back.