Men's Smartwool Classic Thermal Merino 1/4 Long Sleeve Base Layer Medium Black Color Shift

The Men's Smartwool Classic Thermal Merino 1/4 Zip Base Layer is designed to follow the contours of the body for a streamlined, comfortable fit. Crafted from premium Merino wool, the fabric manages moisture, regulates temperature, and resists odor for all-day performance. Flatlock seams increase comfort and minimize chafing, while the side seams wrap to the front for a tailored look. Rated for cool to cold temperatures of 50degF and below, this base layer is a versatile cold-weather essential.