Under Armour Performance Boxers, Black, Size M

Hit the gym, the trail, or the office in the Under Armour Performance Boxers. Built for men who demand comfort without compromise, these boxer briefs keep you dry and focused through the toughest workouts and longest days. The UA Tech™ fabric wicks sweat fast and dries quickly, while anti-odor technology keeps you fresh. A fitted cut with 4-way stretch moves with you, and the performance elastic waistband stays put without pinching. In classic black, size Medium, they’re the everyday essential you’ll reach for again and again.

Key specifications

• Material: 90% Polyester, 10% Elastane
• Fit: Fitted with 4-way stretch construction
• Inseam: 6 inches (15.24 cm)
• Waistband: Performance elastic with branding
• Fly: No-fly design
• Technology: UA Tech™ fabric, anti-odor, moisture-wicking
• Colour: Black
• Size: Medium (M)
• Pack size: Single pair
• Care: Machine wash cold, tumble dry low

Why choose it

These boxers are engineered for performance. The UA Tech™ fabric pulls moisture away from your skin, so you stay dry during intense training. Anti-odor technology prevents the growth of odor-causing microbes, keeping you fresh even after hours of wear. The 4-way stretch allows unrestricted movement in every direction, whether you’re squatting, sprinting, or sitting through a long meeting. The fitted cut provides support without feeling restrictive, and the no-fly design reduces chafing and bulk. Plus, the durable polyester blend holds its shape wash after wash.

Ideal use cases

• High-intensity training and gym sessions
• Running, hiking, and outdoor activities
• All-day wear at work or travel
• Layering under athletic or casual clothing

Good to know

Under Armour sizes run true to size; if between sizes, consider sizing up for a relaxed fit. The anti-odor treatment is permanent and won’t wash out. For best results, wash inside out in cold water and avoid fabric softeners to maintain moisture-wicking performance.