Zettai Ryouiki (絶対領域), I am told, is 'defined by the area of bare skin seen between a skirt and thighhighs'. I am also told that it is
ultimate moe. I can understand the aesthetic appeal of such things very well (I mean, as long as the vital bits are covered, why not), but the websites I discovered went one step further -- complete with pictures.
Not ecchi, since this sort of thing is everywhere these days, but NOT FOR THE EASILY OFFENDED.
Zettai Ryouiki: Achieving the Perfect Zone Anime Desho Desho?
Japanese Titbits #3 - ???? - Ramblings of DarkMirage
Apart from the blatant objectification of girls involved in analyses like these, how many of you actually want more real people to wear these things? Not all of us are made of chopsticks legs.