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

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  • 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


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    • Steel Light Heather/Charcoal Light Heather

    3 Reviews


    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

    polyester, elastane
    boxer brief
    Manufacturer Warranty
    limited lifetime

    Tech Specs

    • Reviews
    • Q & A

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    Great gift for him

    • Familiarity: I gave it as a gift but have feedback to share
    • Fit: True to size
    • Size Bought: Medium
    • Height: 6'2"
    • Weight: 180lbs

    I gave these as a gift to my boyfriend for snowmobiling. He said they are the perfect length - not too long and not too short. They don't ride up and are very breathable. He asked me to get him another pair! All round great product.

    Nice Feeling

    • Familiarity: I've used it several times
    • Fit: True to size
    • Height: 6'2"
    • Weight: 230lbs

    These undies are good feeling. Plenty of room in the right areas...
    The are a little small around the thighs. I have big thighs though.