Race-inspired power for juniors.The Hero World Cup 90 SC is a high-performance race boot for competitive junior racers.It features a stiff 90 flex rating.The 97mm last provides increased comfort, circulation and warmth while still maintaining a performance fit.A short cuff design accommodates a natural stance and range of motion for smaller athletes, further increasing comfort and performance. Narrow Fit.Narrow Fit features a 97mm last for a race-inspired fit with a contoured forefoot and strong heel cup for a superb balance of performance, control, and comfort. Better Skiability, Better Fit.Dual Core shell technology provides targeted power transmission and shell wrapping, resulting in livelier rebound, response, and control. Short Cuff Design.A shorter upper cuff provides a more natural stance for skiers with shorter legs to increase balance, comfort, and performance. Racing Precision.Racing liners feature anatomic high-density foam padding for optimized precision and performance.FEATURES:-Last:97.Flex Index:90.Technology:Dual Core.Composition:-Polyurethane.