Mark Martin Kids Hats Savor the adrenaline of Race Day with officially licensed Mark Martin Kids Hats from the ultimate sports store! Show your Mark Martin devotion with authentic Nascar Kids Hats featuring Mark Martin Youth Hat, Children's and Caps for Kids. Nascar fans, score your new Mark Martin Kids Hat from our Nascar Shop and receive your new Mark Martin Gear in time for the next big race. Go Mr. Consistency!