Kinky boots are boots with extreme characteristics which are intended to present a dramatic sexy appearance, such as by a prostitute or dominatrix. Extreme characteristics might include very high heels, thigh- or crotch-high length, or unusual colors or materials. Boots like this can be related to boot fetishism, which thus makes them a form of fetish clothing. The term is ambiguous, since what can be considered kinky by some can be seen as elegant fashion by others.
Boots of this type, and specifically the thigh-high leather boots worn by Honor Blackman in her role as Cathy Gale in The Avengers, are referred to in the 1964 song "Kinky Boots" by Blackman and her Avengers co-star Patrick Macnee. Usually, nowadays the term is connected to the type of thigh-length boots used by Julia Roberts in the 1990 movie Pretty Woman and by Madonna in her Re-Invention Tour in 2004.