It might just be their term (like how BMW and Toyota have house names for their synthetic leathers). It might be based on MIRUM, since I recall BMW (who own Mi

It might just be their term (like how BMW and Toyota have house names for their synthetic leathers). It might be based on MIRUM, since I recall BMW (who own Mini) working with them awhile back. MIRUM is one of the few plant based leather “replacements” that uses no plastic - although I obviously don’t know if the material used in Minis is this and is 100% plastic free, just throwing some possible leads out. I had a leather worker make me a wallet out of a batch of MIRUM I got a few years ago and they were surprised at how close it gets to working with leather. It’s certainly not perfect - or at least wasn’t back then - but it was apparently far more usable than the plastic backed alternatives. Still holds up today and aged decently well. If BMW/Mini are indeed using it finally, IMO it’s a win over their earlier alternative leathers.