(quote) Jim-875732 said: Well, I said it about men and cleavage: Eyes up, guys. Same to you ladies. Eyes up.
I don't think the women necessarily struggle not to look down or with lustful thoughts in the presence of speedos (at least, I don't). But I do think they reveal too much information about the guy wearing one. They certainly aren't dignified and they don't hide enough of what should be covered for male modesty. (Seems to me that bikinis are more or less the female equivalent of speedos, though some are way more provocative than others, whereas speedos all seem about the same in my limited experience with them.)
I really do think that modesty is important because it is a way of treating yourself with respect, which hopefully influences you to treat others with respect no matter how they are dressed.
However, if a person is dressed in such a way that their fellow human beings have a difficult time gaining or regaining custody of their eyes, the outfit itself is probably too much. I think we should all dress in a way that shows self respect, and doing so would automatically keep things relatively modesty, I think.