Well it looks like I'd get a much snugger fit from what's in the website than I'd get from whitey tighties. Also, I wear dress pants a lot and whiteys sometimes leave panty lines. I don't know what the hell they're talking about about microfibers, but it sounds more comfortable than cotton.
Also, I'll be damned if I'm going to actually go shopping at the mall for nice underwear.
Edit: Never mind.
http://www.webundies.com/sizes.htm