Smartwool Merino Boxer Brief Boxed - Deep Navy, Size L

Men's thermal boxer briefs crafted from premium ZQ-certified Merino wool blend, offering exceptional temperature regulation and natural odor resistance for all-day comfort in any activity. The slim fit with a functional fly and flatlock seams ensures a smooth, chafe-free experience, while the Core Spun Technology enhances durability for long-lasting wear.

Advantages

The 87% Merino wool and 13% nylon fabric provides adaptive warmth in cold conditions and cooling in warm weather, making these boxer briefs ideal for year-round use. Merino wool naturally wicks moisture and resists odors, keeping you fresh even during intense workouts or multi-day adventures. The fabric-covered elastic waistband stays in place without binding, and the 6.5-inch inseam offers ample coverage without excess bulk.

Suitable for

• Everyday wear and travel
• Hiking, running, and active sports
• Layering under technical outerwear in cold climates
• Men seeking a sustainable, high-performance underwear option

Key specifications

• Material: 87% Merino Wool, 13% Nylon (ZQ-certified)
• Fabric weight: 150 g/m²
• Fit: Slim with functional fly
• Inseam: 6.5 inches (16.5 cm)
• Seams: Flatlock for chafe prevention
• Care: Machine wash cold, tumble dry low

Recommendations

For optimal longevity, wash inside out with similar colors and avoid fabric softeners. Pair with Smartwool base layers for a complete moisture-managing system during cold-weather activities.