Smartwool Active Boxer Brief Medium Gray Heather M

Men's thermal boxer briefs engineered for high-output activities, delivering exceptional moisture management and odor resistance through a Merino wool blend. The Smartwool Active Boxer Brief in Medium Gray Heather keeps you dry and comfortable during intense workouts or all-day wear.

Advantages

Crafted from a 56% Merino wool and 44% nylon blend with a lightweight 150 g/m² fabric weight, these boxer briefs offer natural temperature regulation, breathability, and quick-drying performance. The slim fit and 6-inch inseam provide a supportive, chafe-free experience, while flatlock seams and a functional fly enhance comfort and convenience. The elastic waistband is covered in Merino Sport fabric for a soft, secure fit that stays in place.

Suitable for

• Hiking and trail running
• Running and high-intensity training
• Skiing and snowboarding
• Everyday wear and travel

Key specifications

• Material: 56% Merino Wool, 44% Nylon
• Fabric weight: 150 g/m² (Merino 150)
• Fit: Slim fit with 6-inch inseam
• Waistband: Elastic, covered in Merino Sport fabric
• Seams: Flatlock to prevent chafing
• Fly: Functional fly
• Features: Moisture wicking, quick drying, odor resistant
• Care: Machine wash cold, tumble dry low
• Sustainability: ZQ-certified Merino wool

Recommendations

For athletes and outdoor enthusiasts who demand all-day comfort and performance, the Smartwool Active Boxer Brief is an essential base layer. Its Merino wool blend naturally regulates temperature and resists odor, making it ideal for multi-day adventures or daily training.