Thanks WB and HC4U. I have also run into this "cordura" sil-nylon on some Sea to Summit dry sacks that I think was supposedly an upgrade from their earlier non-Cordura sil-nyl dry sacks. So the Speer, Mac Cat and HH tarps, are they all also this "Cordura" sil-nyl or some other non-Cordura sil-nylon? I think it's likely no one knows at the moment. I was just trying to figure out if this was supposed to be an advantage over earlier generations of sil-nylon. The weight seems to be about the same. But if it is an advantage- or even a difference- the Jacks have not mentioned it. The weight is claimed to be 1.1 oz/y2.
Last edited by BillyBob58; 04-25-2008 at 21:40..