The ripstop nylon is the best. It washes well, dries quickly, and is really strong. The seams hold well too. The fabric is a bit expensive, though. I found a set of bags, already made, five bags for $17, and that includes a pouch. That's actually tough to beat, even making them yourself. A lot cheaper than envirosax, chico bags, baggu and those fancy-shmancy ones. The bags I found were at
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. I think to make that set probably took them about 20 square feet offabric, which would cost me on the order of $10 or more (Ithink...didn't shop too hard yet). I might just buy instead of makeon this one.--Dale--