Term used for ski boots to describe the stiffness of the outer shell. This term can also be used to describe how much a ski or snowboard bends when pressure is applied; typically, the better the skier, the more rigid the ski.
Because every foot is different, thermoformed footbeds are designed to adapt to the shape of your feet. The footbed is heated and your foot then leaves an impression of both the sole and the malleolus, an area that is often sensitive. The result is greater comfort and greater efficiency.