Formal & Nylon Socks men's 

Nylon dress socks are generally thin to sheer, not all nylon socks are sheer, some are TNT which means thick and thins in designer terms, thick lines and sheer fabric

Nylon socks became popular around the turn of the century with the by DuPont of nylon. Before that most socks were hand knitted or were considered a luxury item. Only the great kings and queens of France, England and Germany could afford such luxury.

Why nylon socks and not cotton?  The choice is yours!

Many people still want nylon socks because of the weight nylon socks are generally lighter than cotton socks and stay up longer because of the elastic properties of nylon. Nylon dress socks doesn't shrink after repeated washes and do not fade and have a certain shine and luster to them that cotton does not. (mercerized cotton is the shinny version of cotton)  of course, rayon, polyester all fall under the nylon umbrella they are all synthetic and man made. Rayon socks are usually the one with the most shine and luster and great for ultra formal evens. Sheer nylon dress socks by sold by Eliot Grey are also used for ultra formal events where a tuxedo is required and style is required.