I have just bought a Karrimor Munro 65L for £50. Haven't used it yet but it is cheap and reasonably light for its size yet looks as if it will do for when my "better" rucsacs (Berghaus free-flow 35+8 and Berghaus arete) aren't quite large enough for all the kit I might need - e.g. walking in winter with family or other group when one wants to have extra clothing and such like. Karrimor have, I believe, "upped their game" a bit but they won't match the three "hots" sacks I already have from the 70s (e.g. Hot Earth) which came with a lifetime guarantee! I doubt that I will use the Munro as a full-blown backpack for camping in cooller weather but it will be interesting to see how it feels when carrying summer gear.