Extremely cold days can test your motivation to get on the bike sometimes. The ArcticDuty shoe covers give you that motivation back. These heavy-duty shoe covers keep your feet warm in the most extreme circumstances. The 3mm thick neoprene layer is the base and is surrounded by a NeoSkin outer layer and a thermal material inner lining to protect your shoes and keep your feet warm. Optimal protection of your feet to conquer your icey rides on the bike!