Smartwool Men's Classic Thermal Merino Base Layer 1/4 Zip 2027

A warm merino foundation for cold days on the mountain, this quarter-zip top uses 100% merino wool to manage temperature, moisture and odor as your activity changes.

Key Features

• 100% merino wool
• Thermal-weight fabric
• Slim fit for layering
• Flatlock seams to reduce chafing
• Quarter-zip neck for ventilation
• Shoulder panels

Why We Like It

Merino warmth makes it useful from first chair to the last run, and the close fit layers smoothly under your ski or snowboard kit.

The Lab Fit Tip

Choose a close fit that lets you move freely. Add a midlayer for extra warmth instead of sizing up your base layer.