Hike, bike, run and ski with the Smartwool Men's Classic Thermal Merino Base Layer Bottom. Made from 100% Merino wool, these midweight bottoms deliver natural warmth, breathable moisture management, and odor resistance for long days in the mountains. The slim fit layers easily under ski pants, snow pants, or hiking shells, while flatlock seams help minimize chafing and keep you comfortable on the move. Ideal for skiing, snowboarding, winter hiking, and other cold-weather adventures, these versatile bottoms are a dependable foundation for your year-round layering system.
- Merino wool manages moisture and odors to keep you comfortable throughout the day
- Flatlock seams reduce irritation while active
- Slim Fit follows the contours of your body for easy layering without unnecessary bulk
- Elastic waistband adds next-to-skin comfort for a custom fit each time
- Winter 2026/27 Product
