2025 Men's Intraknit Thermal Max Merino 1/4 Zip

Meet the Men's Intraknit™ Thermal Max Merino Base Layer 1/4 Zip from Smartwool. This bulk-free, 100% Merino wool thermal layer brings a new dimension to active winter wear. With seamlessly integrated insulation and ventilation, perfectly articulated flex zones, and Merino comfort, it'll be the first thing you grab when you need a warmer layer for your high-intensity, cold-weather adventures.

• Fit: Slim
• Our slim fit is intended to follow the contours of the body
• Featuring Intraknit™ technology: Insulation, articulation, and ventilation are seamlessly integrated to help with movement and comfort during high-intensity activities
• 100% Merino yarn provides the full power of Merino with moisture management, insulation, thermoregulation, and odor control
• Insulating terry loops are seamlessly paired with mesh ventilation in gender-specific zones to help balance warmth and breathability
• 3D mapping results in near custom fit and freedom of movement
• Knit-in reflective elements
• 8.25" (21 cm) center-front zipper
• Made in India: 97% Merino Wool, 2% Polyamide, 1% Elastane. Exclusive of Decoration.