I was wondering why they aren’t made with a silver Mylar outer skin to reflect more heat.
Gold Mylar would be best as NASA uses it on spacecraft, but it seems to be unobtainium.
the layer of 24k gold would be so thin cost shouldn’t be prohibitive.
summit racing and others sell it.
it could be sewn together to become a blanket “skin” over the factory blankets.
Add some spray adhesive to the inside and voila!!
Did I just come up with a sellable product??