LOL - we have been all over the place in this thread already but here is one guy who is multi-operational and seems to have all recreational occasions covered:
http://25.media.tumblr.com/8ba2322d6...8re5o1_500.jpg
He wears red split-sided short running shorts with a cord under which may be a G string - and below that the tanline of what may have beensquare cut trunks.