Quote Originally Posted by ny biker View Post
Sports bra. I do not want to sweat that much in a regular bra. And I do tend to unzip the jersey all the way when I get hot.

When it's really hot I wear a cycling tank with a built-in shelf bra.

For cooler temps, I would like like a wool camisole with a shelf bra, and/or a wool sports bra.
My wool Ibex bra is comfortable in hot weather. It's actually really light. Granted, I'm small chested and need little support, but I almost don't know I'm wearing it. I can wear it multiple times between washings, too, which is nice on trips when I don't want to bring a bra for every day.