Lange RX 100 MV Ski Boots - Men's:  Built from the chassis of the redesigned RS, the all-new RX 100 offers a racing pedigree with enhanced all-mountain features and a new, more inclusive fit.  Our new Dual Core shell construction and Dual 3D liner integrate perfectly, ensuring unparalleled foot-wrapping, precision, and power transmission. The new RX specific fit retains Lange's strong heel lock and foot hold with more instant "out-of-the-box" comfort than any ski boots before it.