Bike shorts

The embarrassment helps keep a boner from forming in the first place (at least that's how it is with me). And besides, during either biking or running, an erection is virtually never going to happen since the body is busy sending blood & oxygen elsewhere.

Infront of a person who was looking intently, I'd feel really awkward. I really doubt I'd get a boner. It's not like It's a sexual thing, bike riding.

If you have the energy to get a boner ... YOU'RE NOT BIKING HARD ENOUGH! :-)

Okay, but seriously, 75% of the time that I'm wearing the tight bib shorts is when I'm on an organized ride where there are a couple of hundred other people who are also wearing them. (I also perfer night rides that start at say midnight or 1am ... that helps with lack of visibility as well)

And to clarify my earlier post, when I said I just wear the lycra, I meant I wear the lycra cycling shorts (with the padding) as opposed to the baggy cycling shorts.