Sorry if it's the wrong sub-forum, as I didn't one about clothing.
To ride in the city, I wear one of those long ponchos with sleeves (I prefer those with sleeves over capes) and add some shoe covers so that I'm totally dry when I get to my destination... save for the sweat when not in the winter time or when I have to ride up-hill. Besides, big ponchos are a pain when it's windy.
Is there such a thing as breathing/breathable ponchos, eg. Goretex, and compact enough to be used when commuting?