undergarment jockstrap http://id.loc.gov/authorities/subjects/sh2012001611 https://en.wikipedia.org/wiki/Jockstrap https://www.wikidata.org/wiki/Q10940 An undergarment for protecting the testes and penis during cycling, contact sports or other vigorous physical activity. A jockstrap consists of a waistband (usually elastic) with a support pouch for the genitalia and two elastic straps affixed to the base of the pouch and to the left and right sides of the waistband at the hip. The pouch, in some varieties, may be fitted with a pocket to hold an abdominal guard (impact resistant cup, box) to protect the testicles and the penis from injury. athletic supporter jock-strap jockstraps