The Rossignol Vizion 4B 100 HV Ski Boot 2027 - Men's is an alpine ski boot for downhill days on the mountain, designed for easier entry and a forgiving fit. Vizion Step In technology opens the cuff wide to help with getting in and out, while the 102 mm last accommodates wider feet. Dual Core construction supports responsive power transfer, and the medium 100 flex balances support with movement. A customizable liner with Thinsulate Stretch insulation adds a personalized fit and warmth. GripWalk soles provide traction for walking, and adjustable aluminum buckles and a 40 mm power strap help secure the fit.