Built from the chassis of the redesigned RS, the all-new RX 90 W offers a racing pedigree with enhanced women-specific 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.