90% Polyester - 10% Elastane - 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" has 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" 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
- Anti-odor technology prevents the growth of odor-causing microbes to keep your gear fresher, longer
- Performance waistband for a secure, comfortable fit
- Working fly for convenience
- 3" inseam

WHY WE MADE IT: When we burst onto the performance apparel scene, performance underwear was a no-show. So we decided to fix it with underwear that worked as hard as all of our other UA gear. And athletes responded, making the UA Boxerjock® a best seller season after season. For one reason because they perform. They’re comfortable, they stay put, wick sweat, keep you cool, and kill odors. Typical UA even our underwear overachieves. You’ll Never Wear Regular Underwear Again