Skirt
From wipipedia.org

A skirt is a garment that covers the body from the waist to anywhere from the mid-thigh to the ankles depending on length. Unlike trousers or shorts, it is open at the bottom.
In modern western societies it is considered an exclusively female garment (except for kilts worn in a few countries, notably Scotland). It is therefore often preferred to trousers by transvestites and cross-dressers. Conversely, it may be avoided by butch females.
Like other garments, it can be made of fetish materials such as leather, rubber and PVC.