Can anyone recommend a raincoat?

[showjumpergirl]

As I went to a show today and was soaked to the bone due to torrential rain, I've decided to buy a REALLY waterproof coat, so does anyone have any suggestions for a sort of overcoat - it doesn't need to be warm - to go over whatever I was wearing anyway and keep me totally dry at horsey events? Preferably fairly smart / flattering etc.

 

[showqa]

The Drizabone coats are pretty good - heavy though. Waxed basically.

 

[Firefly*]

Another recommendations for a Drizabone coat. I've just bought hubby one from Cornwall Farmers as it was half price