I believe that it is a form of fiberglass insulation available in Europe. I don't remember the name but I do remember seeing a similar product used by the Brits in Iraq. Then again over there it could have been sourced from anywhere and could very well have been the fiberfrax material mentioned earlier. I do remember that it had a very similar feel/texture to the fiberglass home insulation available at any Lowe's or Home Depot.