The Iceland Zip super-cozy women‘s winter boots take winter as seriously as you do. They feature seam-sealed construction to keep you dry and superior HEAT-MX insulation technology to keep you warm down to as low as -40°F. As you take in nature‘s sparkling beauty, you‘ll feel good knowing the leather on these women‘s boots comes from a tannery that‘s rated gold for sustainability. Seam-sealed waterproof construction Waterproof leather and ripstop upper Flexible waterproof synthetic rubber shell HEAT-MX thermal insulation Plush faux-fur collar Gusseted inner side zip closure and heel pull tab for easy on-off Moisture-wicking faux-fur lining Cleansport NXT® for natural odor control Removable CushyStep Everyday EVA foam footbed for cushioned comfort DEFENDER2 synthetic rubber outsole for traction and stability in wintry conditions Deep channels disperse snow, mud and water NiteRays reflective technology Imported