Explore our accumulation of high-quality slides, thong straps, leather, and sports sandals for boys in various playful shades. 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. Navy blue is the most common color for denim and dress pants.