V-Frame power-ribs on the cuff add strength without weight * Interchangable DIN-standard Vibram Ride rubber sole can be used with any step-in binding: alpine or alpine touring * Fixed Powerblock forward-lean mechanism creates a complete lock between the cuff and shell * Scarpa intuition speed liner is designed for maximum power, with overlap construction and 100% High Density Ultralon foam * Dual-density foot for optimal support and power