Daytona Road Star Pro Gore-Tex Boots (Black) From  £422.99

The Daytona Pro boots are totally waterproof - I have ridden in an extended deluge in them.
They fit just right - roomy for the foot but secure on ankles. The double zip system works well after a bit of practice (put a tiny bit of candle wax on the curved one for lubrication). The boots really do look the business, too.
This is my fifth expensive pair of goretex boots, and they are the best I have ever had.