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The Smartwool Classic Thermal Merino Base Layer 1/4 Zip Top isn't just a baselayer, it's a stink-resistant lightweight champ, made for getting after it in the cold. Layer with ease thanks to this slim-fitting garment that features a 1/4 zipper and 100% breathable merino wool. Make sweating fun with the Smartwool Classic Thermal Merino Base Layer 1/4 Zip Top.
100% Merino Wool – Made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance.
Slim Fit – Slim fit is intended to follow the contours of the body
Zipper Length Size Medium – 7" (18 cm)
Flatlock Seam Construction Designed to Eliminate Chafing