Foam might fit, but I would worry about UV/heat, water absorption and whether it would stay secure at speed.
I am based in Shenzhen and can explore a simple satin-black pair made from a heat- and UV-resistant engineering polymer — no carbon wrap.
The target price would be £149 per pair plus actual shipping, subject to proper design licensing and successful fitment testing. I am not taking orders or money yet.
If at least five E85 owners here would genuinely buy at that target price, I will fund the first prototype and post close-up photos and a fitment video.
Would anyone here be interested? Would you prefer an OEM-style texture or smooth satin black?