Smartwool Intraknit Thermal Merino Base Layer 1/4 Zip Top - Men's

Smartwool's new Intraknit base layer construction was a smash last winter, and they continue to pile it on this year. The Smartwool Intraknit Thermal Merino Base Layer 1/4 Zip Top combines Merino wool with polyester for fast dry times, cozy warmth, and enhanced durability in the mountains.