Taking riding footwear to the limits, the Extreme Zip Paddock H2O Insulated boots are engineered to keep feet warm and dry ? even in the depths of winter. ATS® technology for stability and all-day comfort. 200g Thinsulate™ Insulation for warmth with less bulk . Waterproof PRO™ construction. Mesh X-Static® pure silver lining for permanent anti-odor performance. Waterproof full-grain leather upper. Moisture-wicking lining. Suede padded top collar with Achilles notch. Antiqued brass YKK® zipper. Thermal insole. Reflective piping. Stabilizing lateral motion control device. Duratread™ outsole provides maximum wear resistance and flexibility