The Atomic Redster FIS 90 may technically be a junior ski boot, but it’s first and foremost a Redster. That means it’s built for junior racers who want to go fast – with a stiff Carbon Spine to channel power directly to your ski, letting you exit turns with more rebound and carve every turn with greater precision. It also features an authentic race-room fit through a super narrow 95mm last, which provides exceptionally precise foot hold. We’ve also added 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. And the boot now comes with a Size Adjuster in the box that adds an extra half size to the boot when you need it.