The Diablo Race Pro is the successor to the XT series and represents a paradigm shift in Tecnica race boot design. This boot skis extremely well, the 90 flex keeps it within the realm of real race boots but, like the Doberman 130 Pro, gives strong, technically proficient skiers a boot that rocks in the race course and just enough forbearance for all-mountain, all-terrain and all-conditions skiing. It demands a high level of commitment and concentration and is intolerant of lapses in either.