Transfire is one of the few all new, state of the art designs in less than expert level boots in recent years. Nordica engineered this boot to ski better, and be easier to use than any other boot on the market. 3 piece design allows it to be stiffer from side to side, and offer a forgiving forward flex. The outside tongue gives Transfire a springier flex pattern, so it helps you get from turn to turn with less effort. By offering all of these features, Nordica made the Transfire R4 stand all alone in its price range.