Leggings are a type of skin-tight clothing covering the legs, which can be worn by both men and women. Modern leggings are typically made from a blend of lycra (aka spandex), nylon, cotton, or polyester blend, but they can also be made from wool, silk and other materials. Leggings are sometimes worn fully exposed, and are more traditionally worn partially covered by a garment such as a skirt, a large t-shirt or shorts, or fully covered by an outer garment, such as a full length skirt.

Leggings are typically ankle-length, and some are stirrupped or encase the feet. Some are shorter. Leggings are worn to keep a person's legs warm, as protection from chafing during an activity such as exercise or as a decorative or fashion garment. Leggings are worn by both men and women during exercise but usually only by women at other times. In contemporary usage, leggings refers to tight, form-fitting trousers that extend from the waist to the ankles.