The Smartwool Women's Classic Thermal Merino Mock Neck Shirt is a versatile base layer designed to keep you comfortable and warm during cold-weather activities. Made from 100% Merino wool, it naturally manages moisture, resists odor, and regulates temperature for consistent comfort. Its flatlock seam construction and side seams that wrap to the front minimize chafing, while the set-in sleeves and mock neck offer a smooth, cozy fit under layers. The regular fit allows freedom of movement without adding bulk, making it perfect for skiing, hiking, climbing, or winter travel. Lightweight yet warm, this base layer combines technical performance with everyday style for year-round use.