Diaper fetishism is a type of sexual fetishism that involves wearing adult diapers usually without physiological necessity. While diapers may be thought of in relation to infantalism, they can also be thought of as a subset of clothing fetishism, since the wearer derives pleasure from the feeling or texture of the garment. Several companies manufacture undergarments specially designed those with an adult diaper fetish (for example: ☀). Adult diaper fetishism is often regarded as a private part of a person's sexual identity, and both gay and straight people can participate in the fetish.