Smartwool Classic women's thermal 1/4 zip merino sweatshirt

We have updated the fit of our classic women’s thermal merino base layer 1/4 Zip to enhance its functionality while improving its aesthetic. As one of our heaviest and best base layer tops for cold weather, this garment uses 100% responsibly sourced merino wool, shoulder panels, and flatlock seam construction to help minimize irritation while keeping you comfortable and at a regulated temperature as you enjoy skiing, hiking, running, and more.