From this film, it looks as if the fabric is quite tough - is this the case? Does it crease? Can you compare it's behaviour as a fabric to anything you've come across before?

We are using all sorts of densities, so some are very fine and others quite robust, all however, no matter how thick, are vulnerable to atmosphere and water. Creases are very hard to get out and in terms of behavior, it's probably the last fabric on earth I'd want to use from a design perspective, but is perfect as a metaphor for our disappearing world.