A jockstrap (also known as a jock, jock strap, strap, supporter, or athletic supporter) is an unergarment designed for supporting the male genitalia during the performance of sports or other vigorous physical activity. A typical jockstrap consists of an elastic waistband 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 impact resistant cup to protect the testicles and/or the penis from injury. The jockstrap may serve as a cache-sexe.