outdoor sun screen cover for electronics

What is that fabric/flexible/foam type of material often used in sporting equipment?
It has like a santoprene-ish feel, and its semi-soft to the touch…

I’m thinking about new materials for a SUN cover used for electronic equipment outdoors. If not that material, any suggestions? Right now, the industry uses pressure formed ABS plastic.

Thanks.

…aero-gel?..used for computer wrist rests and the like…