DetailsFirst tracks, last tracks, and AllTracks. Waking up early and being first in line when the lifts open is awesome, but having to steer clear of certain zones or take an early pit stop because your feet hurt puts a cramp in your morning. There'll be no stopping or shying away with Rossignol's AllTrack Pro 100 Women's Ski Boot, a warm and comfortable boot that truly embraces the do-it-all versatility that all-mountain boots are meant to deliver. This AllTrack boasts a reasonable aggressive 100 flex suitable for the beginner to intermediate skiers or riders on the lighter side, and the comfortable-but-precise 100mm last includes a lower cuff and a slimmer footbed to better accommodate women's natural proportions. The best way to use a boot like this would be to ride first chair to last; that way you can ski fresh tracks in the morning, choppy leftovers around lunch, and whatever you'd call what's left at the end of the day (garbage?). If properly molded by a boot professional, the Optisensor 3D liner will press warm Thinsulate Platinum insulation lined in smooth, soft merino wool. Merino has natural antimicrobial properties for reliable odor-resistance, and it helps with thermal regulation to keep you comfortable on brisk bluebird days and freezing power days.All-mountain ski boot fuses power, precision, and hikingModerately aggressive 100 flex suits intermedaite ridersComfortable-but-precise, women-specific 100mm lastThermal moldable Optisensor 3D liner customizes the fitMerino wool and Thinsulate Platinum ensure insulationHike mode makes the walk to the car a little easierCompatible with Walk To Ride heel pieces (sold separately)Item #ROS00BSTech SpecsShell MaterialpolyetherFlex100Last Width100mmBuckles4Buckle MaterialaluminumWalk ModeyesThermo-moldable LinerOptisensor 3D T2Liner Closurepower strap (40mm)FootbedPUBinding CompatibilityalpineDIN CertifiedyesSoleWTR-compatibleClaimed Weight[half pair] 4lb 6ozRecommended Useall-mountain skiingManufacturer Warranty1 year