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Item #: 331094324

When Under Armour introduced the O Series Underwear, all other men’s athletic underwear was rendered obsolete. The men’s O Series Boxerjock® is built from our smooth, sleek HeatGear® fabric for the best performance. Under Armour’s signature moisture transport system to keep you cool, 4-way stretch to keep you moving, and anti-odour technology to keep you fresh.


  • lightweight HeatGear® fabrics
  • superior HeatGear® moisture transport keeps you cool and dry
  • articulated mesh crotch for comfort, ventilation, and support
  • 4-way stretch for added comfort
  • anti-odour technology
  • working fly


  • 90% Polyester / 10% Elastane
  • Inseam: 9 in.


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