Whether you got$5 or $50 at TopOfStyle, it doesn't really matter because we feature some of the best-selling underwear online. Under Armour is a prominent US-based sports equipment and clothing apparel brand. It was launched in 1996 by its founder Kevin Plank. The brand is operational in 15 major countries across the world with over 15000 retail stores. Many products are available in only one color and that is black.