I am in the market for the Lowerpro Flipside Sport 15L or 20L backpacks and I've seen these advertised on eBay for considerably less than any regular e-tailer. However, all of these are coming from China. Am I safe in assuming that these are knockoffs? I don't see why a backpack from an American company would be 20-25% cheaper from some vendor in China.
Thanks!

I Like macro. 
