The R/Fit Pro 110 is for high performance advanced level skiers who seek precision and control to ski anywhere on the mountain. With a 110 flex and 100-102 mm BioFit last, advanced skiers should take note. The R/Fit Pro 110 comes equipped Roxa's BioFit 4D heat moldable liners. The R/Fit Pro 110 also comes with a host of other features such as Dual Canting, Opti-Lock adjustable instep buckle, and GripWalk soles.