I'm currently planning to make some water resistant stuff sacs and probably soon a hammock tarp. Is extremtextil the only eu place to sell Silnylon? Would prefer to support uk small businesses where possible. Is 30Denier 40g/m2 the usual lightest stuff to use for this? Also, Silnylon vs silpoly, what are the advantages of one over the other. I'm seeing mention of sil poly as having lower abrasion resistant which would probably be an issue for something like a stuff sack that's shoved in and out of packs a lot, would that be right?