The RX 110 combines the ONLY 100mm lasted mono-injection shell, a more moderate flex and Lange's Control Fit Technology. New Control Fit Technology gives this boot the best "out of the box fit" imaginable. The mono-injection shell allows for easy customization when necessary while Lange's Control Fit Liner addresses traditional hard-to-fit issues. The true lasted liner, one piece toe box, instep pocket and saddle stitched seams alleviate common pressure points and increase circulation. The RX 110 delivers an unmatched level of precision, fit, flex and comfort to aggressive freeskiers who don't need a 130 or 120 flex boot.