A snug-fitting pair of jammers will be just as revealing of the male anatomy and the condition it is in as a pair of swim briefs. Its easy to find photos of swimmers wearing jammers that reveal the shape of the male anatomy. A brief is called a brief not because it covers less of the anatomy than something called a non-brief. Briefs cover less of the thighs than jammers, but so far as I am aware, male thighs are not a sexual organ. The notion that some swimmers seen to have that a snug-fitting jammer suitable for lap or competitive swimming will be less revealing of male body parts than a brief is all in the swimmer's imagination. And I differ with some of you guys apparently in thinking that a snug jammer can look very sexy on a guy.
To illustrate, check out a photo like this
http://famewatcher.com/wp-content/up...ed-swimmer.jpg
or, these guys
http://famewatcher.com/wp-content/up...an-in-nike.jpg