As the softest flexing boot in the line, the Promachine 100 is more forgiving but still very reactive, utilizing stiffer plastic along the spine of the shell to create lateral stability and fast energy transfer. Those qualities make it ideal for a skier with a lighter touch who still demands performance out of their boot. Like the other boots in the Promachine family, the 100 is low-volume, lightweight, and energetic. It also employs Primaloft in the liner for added warmth and a cushier feel. An anatomical 98mm-last shell and 3D liner, that can be further customized using infrared heating, makes for incredibly responsive, precise turns and ample rebound. For an easy turning, low-volume boot that performs well in all conditions, look no further than the Promachine 100.