The Rossignol Vizion 4B Pro 100 MV combines the skiing performance of a traditional four-buckle overlap boot with a dramatically easier way to get in and out. Rossignol’s Step-In Technology allows the rear of the shell to open wide, reducing the usual struggle of pulling on an alpine boot while maintaining a secure, supportive structure once everything is locked into place. The Double Buckle System releases the spoiler for entry and then secures it for skiing, while the Steel Spine & Spine Link Mechanism connects the cuff and lower shell for direct power transmission through each turn. With a versatile 100 flex and 100mm medium-volume last, the Vizion 4B Pro 100 MV offers a balanced mix of responsiveness and forgiveness for all-mountain skiing. Dual Core construction adds targeted support and energy transmission, while the articulated Bi-Injected Spoiler provides strong rear support without interfering with the boot’s easy-opening design. Inside, the heat-moldable Full Custom Step-In Liner uses elastic zones and a cuff-following construction to combine personalized fit with the freedom of the Step-In system. For skiers who want capable all-mountain performance in a boot that's noticeably easier to live with, the Vizion 4B Pro 100 MV delivers.