Uppers made of leather, nubuck, & suede making them completely waterproof. Lace up closure with weather protective tongue gussets that prevent snow and water from entering the shoe. Lycra SockFit liner provides extra stability while keeping your foot comfortable, warm, and allows airflow to circulate through. Interior lined with a Thermal Insulated Liner that keeps your foot free from the cold and increases the comfort. "Secret Stash" tongue pocket. CGT outsole - Cold Grip Technology is made of a rubber compound that is designed to increase traction in harsh climates.