Hmmmm....
When I first rode, I would wear underwear. Then I went without for a while, but it just seemed so unsanitary. Now, I ride with underwear, but my biggest concern is that the top of my underwear will peek through the top of my shorts, so everyone will see what color underwear I have on. I just don't think it's cool. I wish sometimes if my underwear was hanging out, that someone would discretely come up and tell me I'm in a compromising position and caution me so I can make some discrete adjustments.
Having said that, I will be getting online tomorrow and ordering several more pairs of cycling tights and shorts. I think I will start going without to see if it really does make a difference, since I'm starting to build on doing long hauls now.
Koffee