The Corsa is the answer to a specific problem: a shell that is the right length but too roomy around the ankle, letting the heel lift under load. Heel lift is the most common serious fit complaint we see, and it is rarely fixed by tightening buckles.
Where a foam liner packs out over a season and stays packed, the OMFit cork composite in a ZipFit moves under heat and pressure and keeps filling the space it is in. Material can be added or shifted later as the fit changes, which is why a ZipFit is an investment rather than a consumable.
- Low-volume profile suited to race boots and tight shells
- OMFit cork-composite fill for custom moulding, vibration damping and long-term durability
- High-density foam with heel retention for power transfer
- Compatible with a wide range of alpine and race shells
Who this is for: a racer or aggressive skier whose shell fits in length but not in volume. It is not a fix for a boot that is simply too big — no liner is — and it is not a comfort upgrade for a boot that already fits well.
Have a bootfitter confirm the shell is right before you spend on a liner.
See our boot fitting range.