I'm not sure about this....

Ok... I'm obviously not a fashionista, but I just don't get this.
I found a picture of this on another blog and I thought I need to look into this.
SO far I haven't seen people wear these.
As a woman, I hate pantyhose... HATE them... why would men want to take on that one thing that is one of the worst things women have to deal with?
Why?