Experience high-performance connection in every turn. The men&';s Rossignol Hi-Speed 100 Pro HV GW ski boots set the bar for on-piste performance, control, and comfort. Built with a data-driven Generative Design Grid shell and a custom R&';Go Fit liner, these boots provide long-lasting support that resists packing out over time. The integrated BOA Fit System enables precise micro-adjustments to enhance stability, foot wrapping, and edge-to-edge responsiveness. Tailored for intermediate to advanced skiers who require a high-volume fit, they feature an adjustable flex system to fine-tune power transmission and board feel to match any mountain condition. Intended Use: All-Mountain, On-Piste Ability Level: Intermediate to Advanced Flex Index: 100 (Medium / Adjustable) Last Width: 102 mm (High Volume) Sole Type: GripWalk (ISO 23223) Shell Material: Polyurethane Cuff Material: Polyolefin Liner Type: Custom R&';Go Fit Closure: BOA Fit System & Micro-Adjust Buckles BOA Fit System: Offers a micro-adjustable, precision fit engineered to optimize lower-shell wrapping, improve heel retention, and maximize overall downhill control. Generative Design Grid Shell: Harnesses data-driven software to construct thin shell walls that reduce overall boot weight while providing structural rigidity and maximum energy transfer. Dual Core Injection: Simultaneously injects two distinct plastic densities into targeted areas of the shell, delivering targeted power transfer and lively rebound through every turn. High Volume Fit: A generous 102 mm last provides ample room across the forefoot and instep for wider feet, ensuring all-day comfort without sacrificing control. Adjustable Flex Mechanism: Features a rear spine adjustment that allows skiers to soften or stiffen boot flex to match personal preference and skiing style. Custom R&';Go Fit Liner: Anatomically shaped with high-density padding that maintains comfortable cushioning and foot hold over extended seasons without packing out. GripWalk Outsoles: Features a rockered profile and high-traction rubber tread pattern to deliver smooth, natural walking motion and enhanced grip on slick surfaces.