Smartwool Men's Classic Thermal Merino Base Layer Crew Size:XL Black Bi-Lite Fiberglass

Bi-Lite Fiberglass

Whether you're in the park or in the streets

zippered pit vents for dumping heat

Nylon Bases

Smartwool Men's Classic Thermal Merino Base Layer Crew Size:XL Black Bi-Lite FiberglassMeet the better than ever Men's Classic Thermal Merino Base Layer Crew. We've updated this 100% Merino wool fan favorite with new colors and a new fit to improve functionality while enhancing aesthetics. Shoulder panels eliminate top shoulder seams, and a flatlock seam construction helps prevent chafing. Add one of our best base layers for cold weather to your winter wardrobe and experience the difference the next time you go skiing, hiking, climbing,