The ACP-STL is a brown Arctic Pro Steel Toe Boot. Its tall profile and topline binding hugs to your legs in order to keep warmth in and the cold out, and a fleece lining with a thermal foam underlayer has been added to the instep area to create additional warmth. The temperature comfort rating keeps you warm at -60F to 30F. The 100% waterproof nylon material keeps your feet dry when working in wet or snowy conditions.