Leggings are several types of leg attire that have varied through the years. Modern usage from the 1960s onwards has come to refer to elastic close-fitting high-rise garments worn over the legs typically by women, such as leg warmers or tights. Usage from the 18th century refers to men's wear usually made of cloth or leather that is wrapped around the leg down to the ankle. In the 19th century, leggings usually referred to infants' leg clothing that were matched with a jacket, as well as leg-wrappings made of leather or wool and worn by soldiers and trappers. Leggings prominently returned to women's fashion in the 1960s, drawing from the form-fitting clothing of dancers. With the widespread adoption of the synthetic fibre Lycra and the rise in popularity of aerobics, leggings came to further prominence in the 1970s and 1980s, and eventually made their way into streetwear. Leggings are a part of the late 2010s into the 2020s athleisure fashion trend of wearing activewear outside sporting activities and in casual settings.

Tights are a kind of cloth garment, most often sheathing the body from the waist to the toe tips with a tight fit, hence the name. They come in absolute opaque, opaque, sheer and fishnet styles — or a combination, such as the original concept of the American term pantyhose with sheer legs and opaque panty.