The Rossignol Crank BOA® H4 snowboard boot offers the support you need to progress in all-mountain riding. The BOA® Fit System provides a precise, snug fit with a simple turn of the dial. The H4 dial automatically retracts for quick, on-the-fly adjustments. The stiff, articulated cuff complements the soft flex of this boot designed to help you improve. The new True Form thermo-moldable liner not only reduces range of motion, adds precision, and reduces fatigue, but it also keeps your feet warm and provides a custom fit based on the shape of your foot. Hidden lace guides reduce wear, the rubber outsole extends durability and ensures good grip on the board and the ground, while the EVA midsole improves shock absorption and comfort.