My no-ride-up panties - for running in my one pair of shorts that rides up my @ss if I don't wear underwear, for under yoga pants, and for running in the winter in tights that I'd like to wear more than once before washing - are the Ibex briefs.

I don't wear them under "normal" clothes though, they leave a very weird line, on my body anyway.

And nothing under cycling shorts, or workout clothes if the fit doesn't require it. I'm with Crankin.

I don't get the "modesty" thing either. Do you wear underwear under swimsuits?