I've written about Absorblo in the past since it was a miracle of science padding developed in the mid-1950s at a Cornell research lab through funding provided by MacGregor. Its first use came in exterior helmet padding, a topic that is in the news again with the NFL's approval of Guardian helmet caps for gameplay. I also wrote about Absorblo's use for the interior padding of helmets.
One can never get too much Absorblo history! Great story and research.