What Our Gearhead(R) Experts Are Saying:"I didn't think ski boots could surprise me, but the Vizion 4B Pro 90 did. The Step In design is legit-it's the first boot I've tried where I didn't have to fight my way in. Once it's on, it skis like a true performance boot with great rebound and edge control. This one's a game-changer for on-piste days."We're all in on comfort and performance with the Rossignol Vizion 4B Pro 90 GW Ski Boots. Designed around an innovative Step In design, these boots open wide from the back cuff-making sliding into them as easy as stepping into a pair of slippers. Then, they lock down with a secure and supportive fit, delivering precise energy transfer and responsiveness we rely on while carving groomers or linking turns through afternoon chop. Packed with Rossignol's Dual Core technology, a steel spine, and an intelligently designed spoiler, these boots offer the progressive flex and rebound of a true alpine performer without the usual stiffness or struggle. The 100mm medium-volume last balances comfort and control, while a seamless toe box and Thinsulate(TM) insulation keep feet warm and pressure-free from first lift to apres.