Having a quick mooch around the shops yesterday (sw of London) there were lots of puffa coats on display including some nice shiny ones (my partner included) as it was pretty cold.
Then walking with her family was a girl (probably between 15 & 18) wearing a clear pvc/PU rainjacket over jumper and jeans. I don't think it was one of the new Primark range (as it looked a different styling to the red one i bought from there last week. So maybe an internet purchase. I didn't take a photo as i wasn't sure if she was an adult and didn't feel right about it, but a very nice mac all the same, even if it was pretty short.
Here's hoping it's the sign of pvc being worn as a fashion item again.