I have the Gore Passion Windstopper jacket. I really like it on cold, windy or rainy days, but I have the same problem, I sweat and so I end up getting wet from the inside out. I don't think vents would help much. When I ride, I sweat no matter what the weather outside. So, I think it is great for stopping cold and light rain, but not so much for breathability. It doesn't usually bother me though as long as I don't make long stops and get the chills from being damp under my jacket.