Men's Classic Thermal Merino Base Layer Crew uzoomsd4 while odor-resistant performance helps keep

while odor-resistant performance helps keep socks fresher after every run

the angled beam is purpose-built to illuminate the path ahead and highlight any obstacles in your way

A secure upper keeps your foot locked in while maintaining breathability during long miles outdoors

weather resistant

Men's Classic Thermal Merino Base Layer Crew uzoomsd4 while odor-resistant performance helps keepIntroducing the upgraded Smartwool Men's Classic Thermal Merino Base Layer Crew. Crafted from 100% Merino wool, this fan favorite now features refreshed colors and an improved fit for enhanced performance and style. The new shoulder panels eliminate top shoulder seams, while the flatlock seam construction minimizes chafing. Add this top rated base layer to your winter gear and feel the difference during your next skiing, hiking, climbing, or biking