Power and Precision. The new RS 70 SC is the result of our deep understanding foot mechanics, fit, and ski boot behavior. Our new, race-developed Dual Core technology supplies incredible rebound and flex control for total control through the turn. The anatomic shell design perfectly integrates with our new thermo-formable Dual 3D liner to deliver unparalleled comfort, precision, and power transmission. Be One with your boots, Be One with your goal. Lange RS 70 SC LV Ski Boots | Blue | 23.5 | Christy Sports