Smartwool Men’s Intraknit Merino 

Lightweight Warmth and Breathability

The Smartwool Men’s Intraknit Merino Base Layer is engineered to deliver the perfect balance of warmth, breathability, and mobility for high-output winter activities. Featuring Smartwool’s innovative Intraknit™ technology, this performance base layer uses targeted knit zones to provide insulation where you need it most while enhancing ventilation in high-heat areas.

Crafted from premium Merino wool, it offers natural temperature regulation, moisture management, and odor resistance to keep you comfortable through changing conditions and long days outdoors. The lightweight, stretch-enhanced construction moves with your body, making it an ideal foundation for skiing, snowboarding, hiking, and cold-weather training.

Whether you're layering beneath technical outerwear or wearing it as part of your everyday winter system, the Intraknit Merino Base Layer delivers next-to-skin comfort and performance-driven functionality.

Why You'll Love It

✔ Intraknit™ construction provides targeted warmth and ventilation

✔ Merino wool naturally regulates temperature in changing conditions

✔ Moisture-wicking fabric helps keep you dry during activity

✔ Naturally odor-resistant for extended wear between washes

✔ Stretch-enhanced design allows unrestricted movement

✔ Lightweight construction layers comfortably under outerwear

✔ Soft, itch-free Merino wool delivers next-to-skin comfort

Additional Features

Body-Mapped Insulation and Ventilation Zones

Moisture-Wicking Performance

Natural Odor Resistance

Four-Way Stretch Mobility

Lightweight, Low-Bulk Layering Design

Breathable Construction for Active Use