Meet the better-than-ever Smartwool Classic Thermal Merino Base Layer Crew. Shoulder panels eliminate top shoulder seams and a flatlock seam construction helps prevent chafing. Add one of the best base layers for cold weather to your winter wardrobe and experience the difference the next time you go skiing, hiking, climbing, or biking.

• Slim Fit
• 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