With the softer flex of the new Atomic Redster WC 70, young racers can use the same World Cup technology that took Marcel Hirscher to overall World Cup victory. This includes a Carbon Spine to channel power directly to the ski. Plus a super narrow 95mm last which provides an authentic race-room fit and exceptionally precise foot hold. On another note, Redster WC 70 now features Memory Fit – the next step in ski boot fitting. So you can create your own completely personalized shell, cuff and liner in a matter of minutes to get a true custom ski boot.