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[Lunsfuhd]

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[chibobber]

Just an idea. Search elevator blankets/ wall pads. Might get lucky.

 

[Borg69]

If you zoom in on the original picture texture it kinda reminds me of a piddle pad. ‍

 

[TazMan2000]

To me, by the sheen, it looks like a vinyl or similar material. The fact that the marker ink doesn't soak in, reinforces that thought. It might be a felt backed vinyl tabletop cover. Drop by your local fabric store to see if they have something similar.

TazMan2000

 

[Ramjet]

Try looking up quilted panels.

 

[NostromoCrew]

Looks like vinyl with a grey checker pattern printed on, to make it look like its woven fibre, then quilted to give it that puffiness.

 

[joberg]

Aviation cargo insulated blankets: