Before they're stitched the 3D molded tongues are shaped to wrap shins ankles and insteps for a seamless and kink-free flex. Durable rubber outsoles prevent wear while rubber ice spikes provide incredible grip and traction on slippery surfaces. Imprint 2 EVA liners feature polyethylene energy panels power-strap cuff closure and an inner cuff lacing harness for maximum comfort and control. New Thin Profile 3D Molded tongues offer better wrap and improved forward flex resulting in a much more comfortable ride. Synthetic leather and textile shells have a full-length backstay design and a lateral support rib for improved response and flex. These legendary do-anything boots have been updated making them even better all-terrain rulers on any hill. Three-part outsoles feature a rubber outsole EVA midsole and soft EVA cushioning that work to protect your feet from repeated drops and landings. Updated Speed Zone lacing system is streamlined for even faster fine-tuning of the upper and lower boot.