45NRTH Mens Grunnur Wool Base Layer - Cedar Sunrise Medium. The Grünnur base layer is the foundation of any cold-weather kit. Soft Merino wool wicks moisture away from the body and insulates even when wet. It’s designed for a comfortable fit without bunching up underneath other layers.

89% Merino wool-blend fabric insulates even when wet

Long drape in back for extra coverage

Raglan sleeves for more range of motion

Available in "Women’s" (more fitted) and "Men’s" (straighter) cuts