Boy’s Sports Groin Protector

Boy’s black lower body protector for contact sports. Elasticized waistband with extra thick padding in the back (pic6). Velcro tabs in the front for on/off. Mesh panels down the front to allow for cool airflow. Thick padding on the sides of hip & thigh areas on the front; on the back the entire buttocks & backs of thighs are covered with padding. In excellent condition. Sz XS. Guessing this would fit maybe size 5-7?