The Smartwool Classic Thermal Merino Base Layer 1/4 Zip is amazing on so many levels.
Hailed as one of the best materials for getting after it in cold weather, this quarter zip is cut from 100% Merino wool that is temperature-regulating, breathable and odor-resistant. A flatlock seam construction keeps you chafe-free so you’ll stay comfortable all day whether you're skiing, hiking or running.
- 100% Merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation and odor resistance
- Fit updated to improve functionality while enhancing aesthetics
- Shoulder panels eliminate top shoulder seams
- Flatlock seam construction designed to minimize chafing
- 10' (25 cm) center front zipper semi-locking slider