Rossignol HERO WORLD CUP ZJ+Race proven power. The Hero World Cup ZJ+ is a full gas, elite level race boot for competitive alpine racers. It features a 92+mm last plug shell with extra thick walls and a race hinged design for the most efficient power transmission available in skiing. A neutral, upright stance complements the narrow build to emphasize power and edge control, while the ultra thin cork flo lace up liner delivers an exact fit and unprecedented precision on snow.