Buske of Las Vegas, Nev.-Rocky Flats Gear says the underwear's inserts are thin and conform to the body's contours, making it difficult to hide anything beneath them. The mix of tungsten and other metals do not set off metal detectors.
The men's design has the fig leaf, while the one for women comes in the shape of clasped hands.
It's unclear whether it would lead to an automatic, more intrusive pat down by federal Transportation Security Administration officials.
Necessity, thou art the mutha of invention, but I think if TSA wants to get to your junk they'll find a way.
I carry my metal VFW membership card outermost in my wallet for similar reasons.