They've updated the fit of their Men's Merino 250 Base Layer 1/4 Zip to improve functionality while also enhancing aesthetics. As one of their heaviest base layer tops and best base layers for cold weather, this garment uses 100% responsibly sourced Merino wool, shoulder panels, and a flatlock seam construction to help minimize chafing as well as help keep you comfortable and temperature-regulated as you enjoy high-intensity skiing, hiking, running, and more.
Smartwool Classic Thermal Merino Base Layer Bottoms - Men's
Women's SMARTWOOL Colorblock 1/4 Zip Merino Base Layer (CHERRY HEATHER) - Alpinstore
Kids' Classic Thermal Merino Base Layer 1/4 Zip Boxed
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Men's Smartwool
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Kids' Classic Thermal Merino Base Layer 1/4 Zip
Smartwool Classic Thermal Merino Boxed 1/4 Zip Base Layer [Plus Size] - Women's