Smartwool Womens Classic Thermal Merino Base Layer 1/4 Zip Mineral Blue Heather

We've updated the fit of our Women's Classic Thermal Merino Base Layer 1/4 Zip to improve functionality while also enhancing aesthetics. As one of our heaviest base layer tops and one of our best base layers for cold weather, this garment uses 100% responsibly sourced Merino wool, shoulder panels, and a flatlock seam construction to help prevent chafing as well as keep you comfortable and temperature regulated as you enjoy high-intensity skiing, hiking, running, and more.

Our slim fit is intended to follow the contours of the body

Fabric helps combine the moisture management, temperature regulation, and odor resistance of 100% Merino wool with interlock knit for comfort

Back body seam wraps to front

Raglan sleeves

Flatlock seam construction designed to help increase comfort and minimize chafing

Size medium center-front zipper: 8" (20 cm)

Made in Vietnam: 100% Merino Wool. Exclusive of Decoration.

Machine Wash Warm Gentle Cycle

Wash With Like Colors

Do Not Bleach

Tumble Dry Low

Cool Iron As Needed

Do Not Iron Decoration

Do Not Dry Clean