The Smartwool Women’s Classic Thermal Merino Base Layer Crew is crafted from 100% Merino wool for natural moisture management, odor resistance, and temperature regulation. Updated with new colors and an improved fit, this cold-weather essential features shoulder panels, raglan sleeves, and flatlock seams to reduce chafing and maximize comfort during skiing, hiking, climbing, or biking. Its slim fit follows the body’s contours for a tailored, performance-ready feel, making it one of the best women’s base layers for winter adventures.

Fit: Slim (follows body contours)

Fabric: 100% Merino Wool

Features:

• 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

Women's Smartwool Apparel Size Chart