Rapha, nice but a bit pricey?

Could you report back as to how successful the reproofing is? I am in the same position and would be keen to know if works out.

I can confirm after 101 miles of constant drizze and light showers, riding in a pack with a handful of people without mudguards that the Nikwax does indeed work. I've not worn the jacket in proper heavy rain since doing it, but I know that after 30 seconds the unproofed jacket would have been sodden through under the conditions I was in on Sunday. As it was, I was dry all day long. One of my favourite bits of kit just got better!