Smartwool updated the fit of the Women's Classic Thermal Merino Base Layer 1/4 Zip to improve functionality while also enhancing aesthetics. As one of the heaviest base layer tops and one of the 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.

Classic 100% thermal merino
Slim Fit intended to follow the contours of the body
Moisture management
Temperature regulation
Odor resistance
Merino wool with interlock knit for comfort
Back body seam wraps to front
Raglan sleeves
Flatlock seam construction to minimize chafing
Size medium center-front zipper: 8" (20 cm)
Made in Vietnam
100% Wool-Merino, exclusive of decoration