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.Shell DUAL CORE: Langes new "power injection" method allows the simultaneous injection of two different durometers of plastic at the exact same time. This unique mono-injection process allows targeted power transmission and shell wrapping; and creates our DUAL CORE sandwich construction throughout the shell, resulting in livelier rebound, response, and total control through the turn.Shell SHORT CUFF: Designed for women and skiers with shorter legs, Langes SHORT CUFF (SC) design features a shorter upper cuff (15mm in back/20mm in front) providing a more natural stance to increase balance, comfort, and performance.Liner DUAL 3D LINER SPORT: DUAL 3D LINERS are pre-shaped to match the inner shell for the most precise and accurate power transmission, and around the foot for our most comfortable anatomic fit. The DUAL 3D SPORT version is 60% thermo-formable (shin, ankle, instep, toe box) with low-density foam integrated in key fit zones for enhanced comfort and support.Shell FLEX ADJUSTABLE: FLEX ADJUSTMENT via removable rear cuff screws allows easy customization for enhanced comfort and performance.