The Smartwool Intraknit Thermal Max Merino Base Layer 1/4 Zip is now down 40% as part of Smartwool’s winter apparel sale, which has rare deals you won’t find elsewhere. This article may contain ...

Like the socks this brand built its reputation on, the Smartwool Merino 150 base layer uses Merino wool – a material that's often used for outdoor apparel, being breathable yet warm, and naturally ...

Wes Siler is your guide to leading a more exciting life in the great outdoors. As Outside’s outdoor lifestyle columnist, he writes about the intersections of science, news, politics, gear, vehicles ...

As winter approaches, outdoor enthusiasts and cold-weather adventurers are turning to Merino wool thermal base layer for its exceptional warmth, comfort, and versatility. Derived from the fine fleece ...