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I own the PWVC ventile coat and I'm probably going to put it on ebay soon because its too slim. However with regards waterproofing it is fine for walking around the city in situations that you're going to be wearing a jacket like that. Realistically you would need something to cover your head if it was serious rain anyway.
It looks good. The cut is nice but slim (Mine is a size 3 and as someone who works out, the shoulders are way too slim, hence moving it, get in touch if you're interested, probably looking for about a hundred for it)
Brass hardware looks suitably luxy. It's unlined so it provides very little in the way of warmth but is windproof.With regards to eco credentials it seems to me that trying to work out the credentials of any "Waterproof, breathable" system, bought new, is splitting hairs. Membrane shell jackets are made of plastic and use flurocarbons to be waterproof. Modern DWR Ventile (and basically all 'waterproof cottons') is maybe better, maybe worse because it's cotton coated in flurocarbons instead of plastic. There's that new Eco Ventile which is recycled cotton, so maybe fractionally better or the Finisterre waterproof jackets, which are recycled plastic made without flurocarbons, but I have no idea what they're made with instead.
I've seen a few waxed jackets made with soy wax, those seem relatively eco or it might be greenwashing. Either way they aren't the same aesthetic.
Buying something second hand or getting damp is always going to be the dominant eco solution so rather than worrying about which waterproofing solution to go for, I would just start cruising ebay for something that suits your needs.
Failing that, the community clothing raincoat seems nice
https://communityclothing.co.uk/products/mensraincoat-navy?variant=6978726002742 quite affordable, a cotton base with a DWR coating, which makes it probably basically the same as modern DWR ventile.
What makes you question it? The weather / waterproofness? I'm sure it'll be absolutely fine in the city, or are you gonna spend hours in the rain doing high intensity stuff?