Under Armour is a leader in high-performance clothing, footwear, and accessories. The company's mission is to make all athletes better through passionate design and relentless pursuit of innovation. The company's mission is to make all athletes better through passionate design and relentless pursuit of innovation. We started with a T-shirt that brings undeniable advantages to athletes, and ultimately we completely changed the way athletes wear it. Today, innovation is our lifeblood and the key to achieving our brand vision: inspiring you with performance solutions that you never knew you needed and couldn't imagine.