It’s all right here:
elastomer, arranged to do what it does.
There’s a sketch of the insides but no description of the stuff.
I would be equally interested to know about the featured parts inside the Gaia and Orea. Are both the same or they are different.
From what I read, the Gaias brought an impact to most systems and the changes are mostly an improvement. With the Oreas, the differences are described to be more subtle to the point of negligible.