Is it independently tested? If not then give it a miss. A lot of money for
bubble wrap.

But Tri Iso Super 9 made by a French company called Actis is not
bubble wrap. If you study it from the point of view of a theoretical
physisist you may conclude the manufacturer's claims are likely to be
correct.

Making your own with several layers of cooking foil and craft paper
would, of course, be much cheaper.