Smartwool Men's Classic Thermal Merino Base Layer Pattern 1/4 Zip Size:XL Water-Resistant Warmth: Efficient and compressible

Water-Resistant Warmth: Efficient and compressible eraLoft™ insulation uses hollow fibers to reduce weight without sacrificing warmth

alpine pursuits and other high-output activities in unpredictable weather

Powder-coated grip

and pens and pencils

Smartwool Men's Classic Thermal Merino Base Layer Pattern 1/4 Zip Size:XL Water-Resistant Warmth: Efficient and compressibleDescription Our new Men's Classic Thermal Merino Base Layer Pattern 1 4 Zip has been rebuilt to provide you with a more functional and fashionable garment. As one of our 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