Sheer knee high pantyhose is a great alternative to pantyhose and stockings under long skirts and trousers. They offer a polished, finished look without the hassle of pantyhose. Also known as trouser socks, knee-highs come in every fabric from opaque to ultra sheer. Sheer knee highs come in varying levels of sheerness and you will sometimes see a 'denier' measurement from 8-100, with 8 being the sheerest. This can often help you determine what to buy. Other considerations are the finish--matte or shimmery, the toe style--sandalfoot or reinforced, and, of course, color. Many women prefer a classic shade like nude or black. For the more adventurous, there are sheer knee-highs in floral patterns, stripes and trendy colors.