Oldsport, you don't mention where you live, how hard you ride, or the temperatures. For the most part, if I ride in the rain, I get wet. It'll either be rain or sweat. The exception is rain below about 40-45 F, and that's cold, nasty rain. I don't believe there's a fabric that'll shed moisture as fast as I can sweat at 50 degrees or up.

I believe Goretex and its ilk may work well if it's cold and dry, and the person wearing it isn't working too hard. Some people believe otherwise -- I think if you draw a line from northern Vermont to central Colorado, then through the Sierras and up to the Oregon coast, most of these people live north of that line.

I look at the design of the jacket to see if it'll help shed heat, not moisture. Pit vents, back vent, adjustable wrist closures, double-ended front zipper. If I need to stay dry, I'll have to slow down when it rains. Or get wet.