Under Armour mission is to make all athletes better through passion, design and the relentless pursuit of innovation Where we started? It all started with an idea to build a superior T-shirt Under Armour's assortment for men, women and youth is complex, but reaping the benefits is simple: wear HeatGear when it's hot, ColdGear when it's cold, and All Season Gear between the extremes #1,401,837 in Clothing, Shoes & Jewelry ( ) #2,719 in