Under Armour's 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. The technology behind Under A...

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Under Armour's 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. 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 All Season Gear between the extremes.

  • ColdGear Reactor is intelligent insulation that adapts to your activity level for the right breathability & warmth for what you're doing
  • Fabric has soft, brushed "nodes" next-to-skin for the right warmth that breathes as you move
  • Material wicks sweat & dries really fast
  • Mock neck construction for added coverage
  • Under Armour’s mission is to make all athletes better through passion, design and the relentless pursuit of innovation
  • ColdGear Reactor is intelligent insulation that adapts to your activity level for the right breathability & warmth for what you're doing
  • Fabric has soft, brushed "nodes" next-to-skin for the right warmth that breathes as you move
  • Material wicks sweat & dries really fast
  • Mock neck construction for added coverage
  • Under Armour’s mission is to make all athletes better through passion, design and the relentless pursuit of innovation

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