This high-neck merino wool long sleeve shirt features ultra-fine merino wool (47%) construction that provides dynamic temperature regulation and moisture management. The specialized knit structure blocks cold air while maintaining breathability, and the natural keratin fibers offer lasting antibacterial and odor-resistant properties that persist through 100+ washes. Designed with a streamlined fit, the shirt includes a half-zip closure, thumb holes in the sleeves, and can be worn as a base layer or standalone piece.