In reply to Carolyn:
> Also, meant to say the Fox 30 seems a fairly generous 30l compared to our adult 30l sacs, so may not that different in volume to the Osprey 35 (which I've never seen, so the reality is I don't really have a clue.....!)
I did wonder about that so that's interesting. 30 doesn't sound much to me thinking of overnight kit, although these days with better kit I guess I can do it rather easily... Anyway his scouts seem keen on them having huge backpacks - they don't seem to need to carry them that far. But I want something he can use to actually hike a few hours carrying with me to a camping spot, with the same amount and sort of stuff you're saying. He has a nice Tatonka pack currently, probably 20 ltrs or a little less. Two years ago it looked like a backpacking rucksack on him, now it looks like a day pack! But applying my Jardine-esque lightweight approach to his first scout camp, we managed to get everything into that bag, or strapped on, but I think it won't fit more than one night's worth of stuff in, hence the search for a new one!
Thanks everyone for the suggestions. The Millets link is great as well as that seems a good price compared to Euro shops I've found selling that model.