The RC4 FREE Pro MV combines a medium last width with a stiff 120 flex, offering maximum control and precision on steep descents and technical lines in the backcountry. The Tech Toe makes ascents easier, and the Vacuum Fit +Plus liner with D3O® tongue ensures a customized fit, high comfort, and optimal damping. The asymmetrical tongue supports precise foot guidance, while VACUUM Fit technology ensures a perfect fit. The GripWalk® sole offers walking comfort and traction off-piste. The BOA® Fit System – H+i1 allows for continuous adjustment for a secure fit and maximum performance.