A jockstrap is a supportive athletic garment worn by men to protect their genitals during physical activity. It is typically made of a stretchy fabric, such as nylon or spandex, and has a pouch that holds the testicles and penis in place. Jockstraps are often worn by athletes who participate in contact sports, such as football, hockey, and wrestling, as they provide protection from impacts and chafing.
In addition to providing protection, jockstraps can also help to improve athletic performance. By keeping the testicles and penis in place, jockstraps can reduce drag and improve range of motion. This can be especially beneficial for athletes who need to be able to move quickly and easily, such as sprinters and soccer players.