Free 2-Day Shipping on Orders Over $50

Detail Images

  • Under Armour - Front
  • Under Armour - Front
  • Under Armour - Front
  • Under Armour - Detail
  • Under Armour - Back
  • Under Armour - 3/4 Back
  • Under Armour - O-Series 9in Boxerjock -2-Pack - Men's - Black/Black
  • Under Armour - O-Series 9in Boxerjock -2-Pack - Men's - Black/Steel Light Heather
  • Under Armour - O-Series 9in Boxerjock -2-Pack - Men's - Steel Light Heather/Charcoal Light Heather
  • Under Armour - Front -
  • Under Armour - Front -
  • Under Armour - Front -
  • Under Armour - Detail -
  • Under Armour - Back -
  • Under Armour - 3/4 Back -

Current Color

  • Under Armour - O-Series 9in Boxerjock -2-Pack - Men's - Black/Black
  • Under Armour - O-Series 9in Boxerjock -2-Pack - Men's - Black/Steel Light Heather
  • Under Armour - O-Series 9in Boxerjock -2-Pack - Men's - Steel Light Heather/Charcoal Light Heather

Under Armour O-Series 9in Boxerjock -2-Pack - Men's

$34.99

Free 2-Day shipping on orders over $50. Learn More

Select a Size:

Select options
  • Select options
    • S
    • M
    • L
    • XL
    • XXL

    Select a Color:

    Select options
  • Select options
    • Black/Black
    • Black/Steel Light Heather
    • Steel Light Heather/Charcoal Light Heather
    551

    1 Review

    Details

    Your go-to's for any workout.

    Sticking with the classics has thus far lead you to success, so why fix what isn't broken? With your Under Armour Men's O-Series 9in Boxerjock underwear, you are ready to take on any new training challenge. Comfortable, next-to-skin fit and flatlock seams keep you cool and dry with Under Armour's Heat Gear fabric while you go for that next mile. Stretchy design moves with you as you deadlift your PR, and anti-odor properties keep your baselayers feeling fresh even by the time you hit the showers.

    • Classic performance boxer briefs for tough training and PR-breaking
    • Next-to-skin fit adds comfort without the squeeze
    • Flatlock seams prevent chafing and discomfort
    • Heat Gear fabric dries quickly and manages sweat
    • Anti-odor properties add freshness even after long workouts
    • Item #UND020K

    Tech Specs

    Material
    polyester, elastane
    Cut
    boxer brief
    Inseam
    9in
    Fly
    yes
    Anti-Odor
    yes
    Manufacturer Warranty
    limited lifetime

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?