As one of their warmest and most reliable cold-weather base layers, the Smartwool Men's Classic Thermal Merino Base Layer 1/4 Zip crafted from 100% responsibly sourced Merino wool, featuring shoulder panels and flatlock seams to reduce chafing and enhance comfort. Perfect for high-intensity activities like skiing, hiking, running, and more, it keeps you comfortable and temperature-regulated through it all.

Features

• Fit: Slim (Intended to follow the contours of the body)
• Fabric helps combine the moisture management, temperature regulation, and odor resistance of 100% Merino wool with interlock knit for comfort
• Flatlock seam construction and offset shoulder and side seams designed to help increase comfort and minimize chafing
• Side seams wrap to front
• Made in Vietnam: 100% Wool-Merino. Exclusive of Decoration.