Smartwool Men's Classic Thermal Merino Base Layer Bottom in Black

We've updated our Men's Classic Thermal Merino Base Layer Bottom to bring you a better fitting, more functional tight. The technical benefits of 100% Merino wool will help you keep your game at a high level for longer. And our heaviest weight wool fabric will help keep you warm and comfortable as you ski, run, and hike the day away.

• 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
  
• Merino-covered elastic interior waistband and traditional fly design
  
• Flatlock seam construction designed to minimize chafing