Under Armour is an American multinational sports apparel company that designs, manufactures, markets, and distributes sportswear, footwear, and accessories. It is the largest sportswear manufacturer in the United States by revenue. Under Armour’s products are sold in over 120 countries and territories.

The company was founded in 1996 by Kevin Plank, a former American football player, who was frustrated with the constant wetness of cotton undershirts. He sought to develop a new type of base layer that would wick away sweat, keeping athletes cooler and drier.

Under Armour’s first product was a moisture-wicking T-shirt, which was quickly adopted by professional athletes. The company’s success led to the expansion of its product line to include a variety of sportswear, footwear, and accessories.

Under Armour is known for its innovative and performance-driven products. The company’s signature HeatGear technology is designed to keep athletes cool and dry, while its ColdGear technology is designed to keep them warm in cold weather. Under Armour also has a variety of products that are designed to improve performance, such as its SpeedForm shoes and its UA Compression apparel.

Under Armour is a global leader in the sportswear industry. The company is committed to innovation and performance, and it continues to develop new products that help athletes of all levels achieve their goals.