Classic Thermal Merino Base Layer – Kids'

Built for kids who don't slow down when the temperature drops, the Classic Thermal Merino Base Layer is our top pick for cold-weather hiking, skiing, and winter play. Pure 250g/m² Merino wool naturally regulates body temp and fights odor over long days out. Flatlock seams and an interlock knit construction keep it comfortable worn directly against the skin.

• 100% Merino wool at 250g/m² delivers reliable midweight warmth without overheating during active movement
• Natural moisture management and odor resistance built into the fiber — no chemical treatments needed
• Flatlock seam construction eliminates pressure points and chafe, critical for all-day wear under a shell or pack
• Slim, close-to-body fit layers cleanly under a midlayer or ski jacket without bunching or restricting movement
• Available in Light Gray — a versatile neutral that pairs with any outer layer and hides trail grime reasonably well