Rossignol's 2013 WC SI 70 is a powerful high-performance boot with an exact, race-inspired fit for aspiring junior racers, aged 12 & under. Rossignols Sensor Inside shells blend World Cup power & precision with Sensor Fit Technology & a 97mm narrow fit forefoot last. The more accommodating forefoot & instep area combine with a strong heel cup, asymmetrical toe box & more articulate ankle area for increased comfort, circulation & warmth. Features Four micro-adjustable buckles Racing fit liner Sensor Inside technology