Men's Classic Thermal Merino Base Layer Crew SIZE:XL while the Pebax® spike plate

while the Pebax® spike plate provides superior traction and propulsion

this bladder is built for reliable performance on the road or trail

Semi-fitted cut allows natural movement without added bulk

now featuring DNA Tuned nitrogen-infused cushioning for enhanced performance

Deep into the Cross Country race

Men's Classic Thermal Merino Base Layer Crew SIZE:XL while the Pebax® spike plateIntroducing 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