Showers Pass, more specifically the Event fabric, is amazing stuff but even in warm weather it can be too much. The pace I ride at seems to work well with the bike I ride so all I have to deal with is the water on me, not the spray from the bike. “Race” geometry keeps crap from the wheels off of me and negates the need for fenders. I take my work clothes in my bag and leave my work shoes at work. I can’t pull off dress shirts this way but synthetic polos work well, along with some sythetic no-iron pants.
The Marmot Precip is a decent item and breathes fairly well. A friend pointed me towards the Arc’Teryx Wraith, supposedly better and I will give that a shot.
When it’s raining the humidity is 100% so there can be no effective transfer of perspiration across the fabric, no matter what it’s made of. 100% humidity inside the fabric, 100% outside. So any perspiration beyond that has to remain unevaporated and get you wet.
After Saturday’s randonneur I’m thinking about a poncho. Dan Goldberg was wearing one and it seemed like he knew what he was doing. The normal course of things is for the rain to drip off the outside, and for the wind underneath the poncho to cool you off.