Support your favorite NBA team in style with this official Nike shirt featuring Dirk Nowitzki of the Dallas Mavericks. Designed for boys in size XL 18/20, this blue shirt is perfect for regular season games and is officially licensed. Made for basketball fans, this shirt is a must-have for any young fan of the Dallas Mavericks and the NBA. Show your team spirit and wear this shirt to the next game or while playing basketball with friends.