most aggressive terrain. Two sets of soles give you the option of a hike-able sole for booting up to your favorite stash or stepping into your favorite Alpine setup.Features:Use: Alpine skiing, Freeriding, Booting Up, Off-Piste Flex Rating: 120 Alpine and Hike-able Ski Mountaineering soles included ?Shock Damper? flex ribs in the instep Contour Cuff follows the shape of the inner leg Field-replacable buckles Factory modifications recommended by the best boot fitters  (less)