Our rugged Gravel Gear® insulated lace-up boot will keep your feet warm and dry during the cold winter months. Constructed of a waterproof suede leather upper for added protection. An injection molded waterproof rubber shell provides lightweight durable protection. Insulated with 200g of Thinsulate insulation that's temperature rated from -25F/-32C. A faux shearling-lined internal EVA midsole provides lightweight cushioning and PK mesh lining for moisture wicking. A rubber lug tread pattern provides good traction on a variety of surfaces. A padded tongue and collar add extra comfort, while the 3/4in. gusset locks out debris. Rear pull-on loop for easy on/off.