We’ve updated the fit of our Men’s Classic Thermal Merino Base Layer 1/4 Zip to improve functionality while also enhancing aesthetics.

As one of our heaviest base layer tops and best base layers for cold weather, this garment uses 100% responsibly sourced Merino wool, shoulder panels, and a flatlock seam construction to help minimize chafing as well as help keep you comfortable and temperature-regulated as you enjoy high-intensity skiing, hiking, running, and more.

100% Merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance
Fit updated to improve functionality while enhancing aesthetics
Shoulder panels eliminate top shoulder seams
Flatlock seam construction designed to minimize chafing

Materials
100% Merino Wool; Exclusive of decoration

Care
Machine wash warm gentle cycle. Wash with like colors. Do not bleach. Tumble dry low. Cool iron as needed. Do not iron decoration. Do not dry clean.