Some types of clothing and certain social situations seem to invite CMNM
Here are some recent photos from social events where guys were wearing kilts. It always seems that whenever some guy is wearing a kilt -- whether formal or informal, he seems to get a lot of attention directed toward what's under the kilt. By the way, it appears that his male buddies are just as fascinated by what he's wearing and what he's not as his women friends are.
Cross-cultural Perspective on Freeballing
I wonder how many other national costumes or traditional clothes allow for freeballing? I've spent a lot of time in Japan and a few other countries where the national costume -- kimono or yukata (light summer informal kimono with fundoshi (loin cloth)) (at least it
remains
one of the traditional ways that some people dress --especialy for
festivals or typical Japanese cultural events) does make freeballing sort of accepted.
As I said in an earlier post (Scottish singer in a kilt), I wonder how many national / native or
traditional costumes make it easy (or not) to freeball and perhaps to
catch a glimpse. We've seen that many guys wearing kilts do not have
anything on underneath.
I
have lived at times in Japan and still have strong connections to it. I
find the kimono and in particular the yukata give a great opportunity
to freeball. 
The traditional kimono, which is really as formal nowadays as a tuxedo and not worn very often at all, does not work out
very
well for freeballing -- mainly because it is worn for ceremonial events
and people are not likely to move around much. The kimono is also worn
tightly bound and can have several undergarments and belts (obi) so that
it is not likely to come open. Damn, it must even be difficult to take a
leak or squat to use the bathroom. However, the yukata is quite a bit
different. It is a casual summer kimono-like one piece outfit --
typically worn for festivals and as night wear / indoor wear at
hotsprings resorts and fine hotels. 
Traditionally, Japanese men (and there are some people who do still) wear the yukata and its shorter version (the happi coat) as casual wear -- although mostly it is only during the summer and fall festivals, but a few for daily wear especially during the hot humid summer season. Under the yukata -- and sometimes ONLY without even the
yukata-- is worn
the traditional Japanese loincloth called the "fundoshi." It is not
exactly underwear because it can be worn as swimwear or beach wear, as
festival gear, and as an undergarment for a yukata (or kimono).
Normally, only men wear a fundoshi, but some guys think it is very sexy
for women to wear them .. so you sometimes see women in porno wearing a
fundoshi.
Fundoshi is not really about freeballing -- it is a wrap that curls up
from
behind and under and can even tightly bind your balls, but it certainly
does not leave much to the imagination once in place. 
There are a couple of styles - -the one for festivals is often twisted into a knotty rope like a thong and rides up the crack of your ass. Other style leave a hanging cover of the front so it's a bit hard to see the guy's encased mound of cock and balls, but this flying droop moves and floats around so you do get a view sometimes. I'm not Japanese and don't have much chance to wear a yukata or fundoshi, but I have an acquaintance in Japan who has been after me to try them. He is a Buddhist priest who is about 35, married with two small children. The place I stay is
just next door to the temple so he invariably invites me over when he
knows I am in Japan. Perhaps he is just trying to be nice by introducing
me to traditional Japanese culture -- Japanese are not very big on
evangelical Buddhism (although I hear it does exist).
On a recent trip to Tokyo, he insisted on measuring
me for a yukata and told me he would have onr made for me and then show
me how to wear it and we would go to a fireworks festival wearing a
yukata. While he was measuring me, he got down on his knees in front of
me (apparently in total innocence) but it sure made me wonder. He first
had me pull off my trousers and then he measured about my waist and hips
while I standing there in a bare of almost mesh semi see-thru boxers. 
I had to pull my t-shirt down over the front to conceal what could have been a eyeful of my
semi-freeballing. The next day he came running up to me again and
wanted to measure me again -- he thought he might have made a mistake so
it surely did get me to questioning his motives. For now, I will assume
he has only my "cross-cultural" education at heart and nothing else. I
do have to say that it will be interesting if he wants to teach me how
to wear a fundoshi next!
There are a few different types of 'fundoshi' style (Japanese
loincloths). 
I guess you might say they are more like "freebutting"
instead of freeballing, but what the hell, I think they look pretty
cool.
This photo above shows a guy's full body tatoo (irezumi) -- still quite
popular with a certain segment of the Japanese -- it was strongly
associated with gangsters (yakuza) but less so nowadays. 
Notice the twisted rope effect in the crack of his fundoshi -- wonder what that feels like -- maybe it helps keeps his semi-hard so that the spectators can enjoy the festival "show" even more. You can see different lengths of "happi" coats in this pic-- so the fundoshi is not really meant to be covered up -- although it can serve as underwear -- it is more like a 400 year old Japanese Speedo bikini or gym shorts.
