High thigh socks (often called over-the-knee socks) became popular in Japan during the 1990s with the "Zettai Ryōiki" fashion trend - the term describes the little strip of bare skin between the top of the socks and a skirt/shorts.
Your fantasy isn't to be seen, it's to be judged. To be measured, compared, and decided if you're worth anything today. That uncertainty is the invisible necklace you're already wearing.