The Ultimate Riding Jacket?

so what do people use to re-waterproof their jackets? My campag one is no longer waterproof, I tried some stuff I have to waterproof shoes but it only worked in patches. Is Nikwax any good?

Nickwax or grangers, both work well aslong as you follow the instructions. For general washing you can use the tech wash or just some pure soap flakes.
http://www.fmcgltd.com/brands/grannys.shtml