The Smartwool Men’s Classic Thermal Merino Base Layer Bottom is a cold-weather essential built for warmth, comfort and dependable performance. Made from soft Merino wool, it helps manage moisture and regulate body temperature while naturally resisting odors during long days outdoors.
The slim fit layers easily under ski pants, snow gear or everyday winter clothing, while flatlock seams help reduce chafing for comfortable movement from first chair to winter hikes and everything in between.
Features
- 100% Merino wool
- Midweight 250 g/m² fabric
- Naturally moisture-managing, temperature-regulating and odor-resistant
- Slim fit follows the contours of the body
- Flatlock seams help minimize chafing
- Merino-lined elastic waistband
- Fully functional fly