"What Our Gearhead® Experts Are Saying: ""If you want easy entry but prefer a slightly more performance-oriented fit than the high-volume version, this is the one. The 100mm last feels balanced and secure, and once the Spine Link locks in, it skis just like a traditional overlap boot. The 80 flex is forgiving but stable, and the Step In system makes getting in and out surprisingly simple—even in cold conditions."" When we’re eager to click in and start carving without the usual boot struggle, the Vizion 4B Pro 80 GW Ski Boot changes the routine entirely. Designed by Rossignol to combine innovative convenience with true alpine performance, this Step In overlap construction opens wide in the back for seamless, slipper-like entry—then locks down for confident, controlled skiing. The Spine Link Mechanism secures a steel spine into a traditional ski position once buckled, delivering dependable power transfer and rebound through every turn. A Dual Core polyurethane shell enhances responsiveness and shell wrapping, while the 100mm medium-volume last balances comfort and precision. Inside, the True Form Step-In liner with Thinsulate™ Stretch insulation and a seamless toe box provides warmth, reduced pressure points, and all-day support. With four micro-adjustable aluminium buckles, a double buckle cuff release, and pre-mounted GripWalk® soles for improved walking traction, this boot blends performance fit and unmatched ease of use—so we can focus on skiing stronger from first chair to last run."