Style # 1209290

Product Info User Reviews

Not your ordinary underwear—the Boxerjock® 3" boxer briefs are built for all-day athletes.

WHAT'S IT DO? When UA introduced the O Series Underwear, all other men's athletic underwear was rendered obsolete. The Men's O Series Boxerjock® 3" boxer briefs are built from our smooth, sleek HeatGear® fabric for the best performance. UA's signature Moisture Transport System to keep you cool, 4-way stretch to keep you moving, and anti-odor technology to keep you fresh. Forget your old boxer briefs that bunch up, wear out, or lose shape. The Men's O Series Boxerjock® 3" underwear stretches, recovers, and fits exactly how you want it to.

  • Lightweight, smooth HeatGear® fabric and mesh fly panel provide all-day comfort
  • Lightweight, 4-way stretch fabrication improves range of motion and dries faster
  • Signature Moisture Transport System wicks away sweat to keep you cool, dry, and light
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Features

Technology

HeatGear®

HOW DOES IT WORK?

Even in the scorching heat, our gear works overtime to regulate your core temperature & wick sweat fast—keeping you cooler, drier & lighter than ever. Click the video to see it in action.

View our temperature guide

UA MEN'S SIZE CHART

HOW TO MEASURE:
CHEST: Place the tape measure under your arms at the fullest part of your chest, wrap around your body until your fingers meet and mark the measurement.
WAIST: Measure around your natural waistline—right above your hips. Be careful not to squeeze too tight to allow a little give.
  SM MD LG XL XXL 3XL 4XL
CHEST 34-36 38-40 42-44 46-48 50-52 52-54 54-56
WAIST 28-29 30-32 34-36 38-40 42-44 44-46 46-48
ALL MEASUREMENTS ARE IN INCHES