Smartwool Merino Boxer Boxed Men's Thermal Boxer Briefs - Black, Size L

Chafing, sweat-soaked underwear, and that clammy feeling after a long hike are problems no one should tolerate. These Smartwool Merino Boxer Briefs solve all three with a fabric that works as hard as you do. The Core Spun Technology wraps merino wool around a nylon core, giving you the softness and odor resistance of wool with the durability to withstand daily wear and repeated washing.

Who is it for

Men who demand comfort during high-output activities like hiking, running, or travel. If you value underwear that stays fresh for days without washing, regulates temperature in both heat and cold, and fits smoothly under any pants, this is your new go-to.

Main features

• 87% merino wool, 13% nylon – naturally odor-resistant and moisture-wicking
• Core Spun Technology for enhanced durability and next-to-skin softness
• Slim fit with 5-inch inseam – no bunching or riding up
• Merino-lined elastic waistband – soft, non-binding comfort
• Flatlock seams prevent chafing during movement
• Breathable, fast-drying, and temperature-regulating

Specifications

• Material: 87% Merino Wool, 13% Nylon
• Fabric weight: 150 g/m²
• Fit: Slim
• Inseam: 12.7 cm (5 inches)
• Waistband: Merino-lined elastic
• Seams: Flatlock
• Odor resistance: Natural
• Moisture wicking: Yes
• Breathability: High
• Temperature regulation: Yes
• Care: Machine wash cold, tumble dry low
• Recommended use: Hiking, Running, Everyday Wear, Travel

Tips

Merino wool is naturally odor-resistant, so you can wear these multiple times between washes. For best results, wash in cold water and lay flat to dry, though tumble dry low is safe. Pair with merino base layers for full-body temperature regulation on cold-weather adventures.