2014 Expedia Flip Flop Report
 

http://viewfinder.expedia.com/featur...ip-flop-report

And some commentary:
http://oystercoloredvelvet.com/?fash...se-this-summer
http://www.bostonglobe.com/lifestyle...ShJ/story.html

I've mentioned this many times, here in San Francisco I'm seeing a lot more guys out running in "traditional" short shorts. I haven't been to the pool in several years, but I'm guessing swimwear follows running wear.

I've never seen a poll of what San Franciscans think of guys wearing abbreviated clothing -IE- speedos and short shorts, but as the old saying goes "Actions speak louder than words". :D

Runners, guys in particular, are finally seeing that "traditional" short shorts are best for running. The shorts allow for a greater range of motion in their legs.

"traditional"
 

A greater range of motion in the legs is obviously desirable for the runners but athletics seem to be one of the few areas of sports where experimentations in what to wear have not been undertaken (or have they ?)
I am thinking of earlier posts where the aerodynamics of divers and the speed advantage of swimmers in certain fabrics have been debated (not to mention the changes we have seen in such events as the luge and slalom snow skiing)

Flip Flop Report
 

Thanks Jackk for commentaries to add to knikon's post (#106 in speedos stigmatised thread where he reported on Market Watch).
I do hope the survey (as referred to in post#111 ) is reliable as I have seen criticism of Expedia's methodology.