The Women's Thermoball Button Up Boot from The North Face is a warm boot for everyday adventures in cool conditions. It utilises Primaloft Thermoball insulation to ensure excellent warmth and comfort while the Oso-fleece collar lining and button up cuff offers increased comfort around the ankle area for all day wear. A protective synthetic mudguard protects the softer upper of the boots and the IcePick temperature sensitive rubber lugs maintain excellent traction across wintry terrain.