microbius I love it that we're MH coat twins! Mine was from a collaboration with Barbour which I think she does every year so, assuming yours is the same, check all the pockets, particularly the inside ones because there should be a leaflet with care instructions and info on where to send it to get it rewaxed and reconditioned. (I believe you can also do it yourself - there's probably something about it on YouTube.) If you can't find it then I think the info is probably on the Barbour website but, if not, give me a shout and I'll dig out my copy.
As you can probably tell, I've never had it reconditioned, in fact I've taken pretty atrocious care of it, other than always hanging it up on a hanger. But then I don't live in the countryside or have dogs or any hobbies that involve crawling around in mud with a shot gun so I think it probably leads a fairly sedate life compared to some Barbours. It's developed this kind of mottled effect down near the hem, which they loftily say is a patina and therefore a good thing. I like to think it's still on the right side of arty-chic but in reality it could be approaching Lady in the Van territory. It's effective though and surprisingly warm - there are normally only a couple of days a year when it's not enough. My only real gripe is that the hood is held on by a few large poppers and detaches far too easily e.g. I use a cross body bag and, if I'm not careful, when I take off the bag, the hood comes too. Annoying and frankly a bit cheapskate as you wouldn't have that problem with a zip. But I don't think I've moaned about bad weather coats for at least 4 years now which tells you a lot about it.
I think last time Maria Gracia Chiuri and her slogans came up I was prepared to give her the benefit of the doubt, but taking a pop at capitalism while working at Dior is a Marie Antoinette level of delusion. But it sounds like she's got no-one on her team who'll tell her, 'Give over Maria'.