Tensegrity structures are sweet.

While I don't wear them anymore, I certainly used to be a big proponent of the thong-variety of underpants. Now, knowing that you tend to get cold if the weather looks at you funny, I understand the necessity of keeping your parts warm... However, I can at least speak to why a thong "seemed like a good idea at the time"

1 - any silky material, in my experience, will slip, slide, and bunch into the nearest cavity given the slightest provocation. when the width of the material is wider than the width of the cavity it's inhabiting, this causes wrinkles... which chafe, and are generally uncomfortable.

2 - in most cases, thongs aren't uncomfortable any more than say, spandex pants or pantyhose are uncomfortable. There's something up against your skin. It takes a day or two to get used to it. Then you're used to it. It's entirely different than a wedgie.

3 - now, this seems to be a gender difference... so I may look into it more... But the idea of underpants, IMHO, is not to protect the WEARER, but to protect the other garments from anything that may... be present where the underwear is. It is easier to wash a piece of cotton the size of a hankie than an entire pair of jeans. surprisingly, I found that thongs, rather than being completely ineffective in this regard, were actually incredibly efficient, in a "number of wearings per laundry load" way.

OTOH, I can't defend lace, leather, rubber, or any of the other fun things that ladies panties are often made of. They aren't practical, and the only explanation I can think of has something to do with self-esteem and other intangibles. But viva la difference, indeed!

Where does one purchase men's sexy silk tiger-striped undergarments?

Inquiring minds want to know.

(As an aside, women's underwear isn't built with warmth in mind because, as I'm sure you've probably noticed, all the bits that would be kept warm are, ahem, inside the body.)

Sweeeeeet! I didn´t even know such things existed.

I bought a thong once. I wore it exactly once, for about 5 minutes. They are not so much underwear, as "thing I wear on my body to conform to the male majority's idea of 'sexy'". Five minutes was enough conforming for me. Thank god for bikini cut.

Now bodices, on the other hand, are the best of both worlds. Functional and sexy. What more could you ask for?

the gentle curves of the upper leg becoming the butt are too beautiful to be broken by a line of elastic!