Bootfitting is a possibility to adapt a slipper tailored to the foot of the skier.
Two techniques exist :
The first one consist in thermoform the slipper for compress matter and adapt it to the foot. This the most popular too
The name of the seconde technique is the injacted. We put PU foam (Isocanate and Polyol) in some special parts of the slipper. The goal is to fill the gaps behind the foot and the shoes shell. This the most technological solution to have a comfortable and efficient slipper.