Train or race. The X8 Classic cross-country ski boot is aimed at fitness-oriented cross-country skiers and young athletic cross-country skiers. The race-inspired construction combines technology with the athlete-tested X-ium range for greater precision and more efficient power transfer with an accessible flex for fitness and recreational skiers. Rossignol's classic cross-country tailored sole provides a natural rolling effect for efficient kick, while the firm grip and thermoformable design deliver a precise, hugging fit for ultimate comfort and control.