A stellar freeride boot that combines the snug 98 mm fit of the Doberman with a more user-friendly 120 flex, the Nordica Promachine 120 Ski Boots rip hard but don't take it out on your feet and shins. The Promachine lineup is a fresh design that fuses elements of the older GPX line and the Doberman GP citizen race line, and the 120 flex version is our personal pick for the best all-round expert level choice.