I am going abroad for 4-5 weeks and travelling many places. Will probably travel by bus a bit in order to save money. So I was thinking maybe instead of lugging around a suitcase, I should get one of those camping-type backpacks (is there a specific name for them?).I don't need anything top of the line. It doesn't need to be rugged enough for a mountain, but it shouldn't fall apart in the middle of the trip either. Just something that would be comfortable to carry, and will carry lots of stuff, and isn't too expensive. Haven't been able to find anything in luggage stores.Anyone have any advice as to where I can find these in Delhi? And of course, if anyone has one for sale second-hand, please PM me!