Crafted from 100% premium merino wool, the Smartwool Thermal Merino 1/4 Zip Base Layer offers superior insulation and moisture management, making it ideal for intense outdoor activities or cold weather layering. Its breathable fabric naturally regulates temperature and resists odor, ensuring comfort throughout extended wear. The quarter-zip design allows customizable ventilation, while the soft, lightweight texture provides unrestricted movement and next-to-skin comfort for expert-level performance in demanding conditions.
