Quote Originally Posted by lph View Post
(To the OP): And how much you will need to stop. Wet=cold=dangerous if it's cold out, so you need to keep as dry as possible. You can generate a lot of heat moving, but it disappears fast once you stop.
If you ride at high exertion it is often too hot to use a rain jacket. We used just get wet in moderate rain. We had to dress as if we were NOT going to stop riding. Then we carried a cheap, non breathable rain jacket and a warm hat in our back pockets.
Flat, Unplanned stop etc....Pull that jacket and hat on to seal in the heat.

Probably not a good plan for rides alone out in the middle of nowhere, but worked well for groups near civilization.