Smartwool Men's Classic Thermal Merino Base Layer Crew Boxed Deep Navy Colour Shift Size:M Leading the way in warmth

Leading the way in warmth and waterproofing technology with

the Room-to-Grow system ensures it'll last through growth spurts

• THERMOREGULATION - The zonal Primaloft® Insulation package over the toe

while the E7 flash lining tape and sealed cuffs effectively thwart water entry

Smartwool Men's Classic Thermal Merino Base Layer Crew Boxed Deep Navy Colour Shift Size:M Leading the way in warmthMeet 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,