T-shirts for Greeneville’s American Downtown celebration are now available, according to a news release from the city.The shirts, commemorating the town’s 10th annual celebration on July 4, come in a variety of adult sizes, colors and designs.The new design this year features a shape of Greene County filled with an American flag and surrounded by fireworks with the messages “American Downtown July 4th Celebration” and “Greeneville, Tennessee.” It is printed in navy blue on red tie dye, solid red, or multi-colored tie dye.