Design: Rich, smooth Nubuck leather with a velvety matte finish Drywair waterproof construction Warmwair insulation to keep your feet warm Pull loops on heel and tongue for easy on and off Lace up style for a secure fit In-Shoe Comfort: Warm and cozy fleece lining for added comfort in cold weather Dr. Martens® air-cushioned sole Durability & Traction: High-performance Dr. Martens® WinterGrip outsole with grooved cleats for enhanced traction, grip and durability on slippery surfaces