The Nordica Promachine 3 120 ski boots pair a narrow, 98mm last with a genuinely stiff 120 flex, built for skiers who want to push hard without giving up all-mountain range. A 3Force Frame surrounds a lightweight, rigid frame with softer plastic through the cuff and shell, so that stiffness transmits power on demand instead of turning punishing the moment terrain gets bumpy or slow. A 3D Cork Fit Liner molds to the foot with dual-density EVA foam, holding the heel and forefoot secure without needing to pull the liner for a fitting. What Our Gearhead(R) Experts Are Saying:"I drove this boot through a mogul field at speed and it never felt like it was working against me the way a stiff boot usually does off the groomed line. The flex only shows up when I actually ask for it."