The X8 Skate ski boot is designed for fitness-oriented skiers and young race skiers. Its race-inspired construction combines technology with our athlete-tested X-ium series for enhanced precision and more efficient power transfer. The low sole, developed for skating, provides a natural rolling effect for efficient skating, while the firm support and thermoformable design ensure a precise, snug fit for ultimate comfort and control. The Dual Core Technology allows for targeted stiffness in the boot for optimal responsiveness without negatively impacting weight. The sport sole features Tech Grip for comfortable walking and central insoles for maximum precision and control on the ski. WINTHERM® offers a breathable, micro-perforated membrane that reflects heat back to its source, providing incredible temperature regulation, comfort, and warmth. Thermoformable liners adapt to your foot using heat, ensuring a perfect fit and great comfort. Upper construction: 3D-injected Dual Core. Lower construction: Performance PVC. Heel construction: 3D plastic reinforcement. Lining: Polyester + active Wintherm membrane. Lacing system: Laces. Sole: SPORT. Closure system: Performance Velcro. Weight: 1250 g/pair (size 42). Color designation: Black/Blaze Red.