Under Armour founded in 1996 by former University of Maryland football player Kevin Plank, Under Armour is the originator of performance apparel–gear engineered to keep athletes cool, dry and light throughout the course of a game, practice or workout. The technology behind Under Armour's diverse product assortment for men, women and youth is complex, but the program for reaping the benefits is simple: wear HeatGear® when it's hot, ColdGear® when it's cold, and AllSeasonGear® between the extremes.

It started with a simple plan to make a superior T-shirt. A shirt that provided compression and wicked perspiration off your skin rather than absorb it. A shirt that worked with your body to regulate temperature and enhance performance.