Originally Posted by
Sardian
I have the Gore Phantom II (The white one below). I'm really happy with it. I also have a Specialized weather proof jacket but sweat builds up too much in it. This doesn't happen with the gore.

+1 on the Gore. The only downside is that it's fairly heavy and thick, so you can't take it off and stick it in a jersey pocket (but you can remove the sleeves). I sweat in any temprature and I really don't care for the shells that don't breath.