Smartwool Women's Classic Thermal Merino Base Layer 1/4 Zip - Winter 2025/2026

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. Features: Slim Fit 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. Care Instructions: 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