Wellllll, to me, it depends on who is wearing it. Some women aren't meant to wear lingerie, like them hill gals that split lumber and can change an engine out of a truck. It doesn't mean that they're any less of a women, actually they can show ya a thing or two, but when they can pick me up also....
I prefer them to wear nothing but a smile.
I just want to add that I find women in hard hats sexy as hell, too.