Men's Classic Thermal Merino Base Layer Crew wkaha3lowgtx and 12 tungsten carbide spikes

and 12 tungsten carbide spikes

Smooth Speed Assist ensures a smooth midfoot run for long jogs

while mesh zones enhance breathability to help keep feet cool and dry

Engineered mesh keeps the upper lightweight and breathable

Effortless Miles

Men's Classic Thermal Merino Base Layer Crew wkaha3lowgtx and 12 tungsten carbide spikesIntroducing the upgraded Smartwool Men's Classic Thermal Merino Base Layer Crew. Crafted from 100% Merino wool, this fan favorite now features refreshed colors and an improved fit for enhanced performance and style. The new shoulder panels eliminate top shoulder seams, while the flatlock seam construction minimizes chafing. Add this top rated base layer to your winter gear and feel the difference during your next skiing, hiking, climbing, or biking