Thank you all so much for thoughtful and interesting ideas. I especially love all the orange!
And beautiful jackets and the kimono, and velvet and sparkly things, but they would also suffer in rain.
I think I’ve identified a gap in my wardrobe, and that is something between a proper winter coat and a short, slightly scruffy raincoat.
It is probably Reiss or similar that does the job. Not hugely exciting but good looking and very useful.
If it’s still hot and dry, I won’t need anything. If it rains, then between home, church and reception, if I only take an umbrella my dress will be drippy.
I do still really like the original coat as an inspiration, and would be very tempted if they had it in my size, but hadn’t thought about points lots of people have made, including the combination of orange-and-black herringbone with navy.