Classic Thermal Merino Base Layer 1/4 Zip Boxed - SW002822 Hats durable and lightweight so you

durable and lightweight so you can pack it in your bag and take it on the road

Adding thermal mass tempers and regulates the heat for slow roasting

Rapidfire Plus provides quick lever access and light operation

200 lumens): 30 seconds* / 52 meters

Permanent– Tough

Classic Thermal Merino Base Layer 1/4 Zip Boxed - SW002822 Hats durable and lightweight so youSmartwool updated the fit of our Men'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 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,