Smartwool updated their 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.

Specifications:

• 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
• Size M inseam: 30" (76 cm)
• Knit in Vietnam: 100% Merino Wool
• Garment Weight: 228 g = 8.04 oz