Product Details     Skill Level Flex Style: LBK2050 With the Lange RX 120 Ski Boots you're ready for anything, and not just because these 120 flex boots offer plenty of support and control. But there's also the GripWalk® outsole, helping you hike to lines where the lifts don't go or survive the slippery traverse of a late-season base area. However, the real game-changer might be the Dual 3D Pro Liner. Not only does it use multiple densities of Ultralon® Foam to give you a fully customizable fit, but it uses RBT Technology to make the tongue a structural part of the boot so you can enjoy enhanced rebound and response. KEY FEATURES Reactive Boost Tongue (RBT) Technology makes the tongue an actually structural part of the boot, improving rebound every time you lean into the boot Dual Core Construction puts soft plastic (for vibration reduction) between hard plastic (for energy and power) to give the shell the best of both worldsSPECSLast Width: 100Skill Level: ExpertFlex: Stiff FEATURES External Screw Canting allows a bootfitter to fine-tune your stance to match your wants and needs GripWalk® Outsoles offer enhanced traction when you’re off your skis, improving confidence and comfort Pro Dual 3D Liner uses multiple densities of Ultralon® Foam to give you unmatched customization and support 45mm power strap Lange RX 120 Ski Boot (Men's)