So, I've been occasionally browsing the local walmart's fabric looking for ripstop nylon. The problem is, at best they will have what looks and feels like it's probably nylon... but it's only labeled as "Assorted Fabric" and "Unknown fiber content".
Even that, they don't have too often. How can I tell if it's ripstop or if it's 30D, 70D....something else? I bought it anyway and it holds my weight.... That's about all I know about it. Maybe that's enough :-).;