A jockstrap is a type of men's underwear that consists of a waistband and a pouch in the front to hold the genitals in place. The pouch is typically made of a stretchy material such as cotton or spandex, and it has an elastic band or straps that go around the thighs to provide support and lift. Jockstraps are often worn by athletes, especially during sports that involve a lot of running or jumping, in order to protect the genitals from injury.
Jockstraps can also be seen as a sexy and attractive piece of underwear, and some men may enjoy wearing them for this reason. In addition, the revealing nature of jockstraps exposes the buttocks.