Rossignol X-IUM Carbon Premium Skate Ski Boots offer elite, world-cup-level precision for competitive athletes. These skating ski boots are crafted with a full carbon sole and heel counter, along with a carbon cuff, providing an ultra-lightweight feel and responsive power delivery. Designed to fit a variety of foot shapes, they ensure world-class comfort, warmth, and precise power transfer to the ski. The boots feature a full-height lace cover for enhanced waterproof coverage, keeping feet dry, while the Speed Lace Lock System allows for quick and easy closure, offering increased support. The thermo-adjustable liners can be heat-molded for a customized fit, ensuring maximum comfort. Carbon cuff is designed to match the natural foot shape for optimal stability and power transmission Full carbon sole enhances efficiency for complete energy transfer and precise control Carbon heel counter increases rigidity for precise control Full-height lace cover provides enhanced waterproof coverage S