A hobble skirt is a below-the-knee skirt with an exceptionally narrow hem. It is designed to prevent the wearer from taking long strides and in turn prevent their mobility. The design hails from the late 1800s, but has been revived by the BDSM community, usually in leather, latex or PVC.
More About Hobble Skirt
A hobble skirt in BDSM is as a form of restraint. It is impossible to move or rapidly remove this piece of clothing, so it falls into a form of bondage. Of course, for those who enjoy hobble skirts, it also has an aesthetic appeal.