The perfect balance of performance and comfort. Designed to deliver the power and precision demanded by the most committed all-mountain skiers, the new Lange RX 100 offers a racing pedigree with a more inclusive high-performance fit. Our new Dual Core shell construction and Dual 3D liner integrate perfectly, ensuring unparalleled foot-wrapping and precision. The new innovative RBT tongue provides energtic power transmission and rebound. The new RX specific fit retains Lange's strong heel lock and foot hold with more instant "out-of-the-box" comfort.• Last: 100 • Flex index: 100 • Shell - Technology: DUAL CORE • Shell - Material: POLYURETHANE • Shell - Bootboard: HARD POLYURETHANE FOAM • Shell - Specifications: EASY ENTRY INSERT • Cuff Material: POLYURETHANE DUAL CORE • Liner -Additional functions: CUSTOMIZABLE • Buckles - Technology: ALU RACE MICRO, SHELL ARTICULTING • Liner - Powerstrap width: 45mm • Buckles - Adjustment: MICRO • Buckles - Additional functions: SECURE PROFILE • Liner -Tongue: POWER WEDGE TONGUE • Buckles - Material: ALU LIGHT • Soles - Properties: GRIPWALK MOUNTED • Additional functions - Canting: EXTERNAL SCREW CANTING • Soles - Features: ALPINE SOLE 5355 COMPATIBLE • Liner - Technology - Liner name: DUAL 3D SPORT LINER • Liner -Additional Features: CUSTOMIZABLE | Rossignol Lange RX 100 GW Men's Ski Boots - Black 13.5 (31.5) | The House