The Dahlia SL Snowboard boot didn"t become Northwave"s best-selling women"s boot year after year by accident. It features the Super Lace system so you can get your boots to the perfect tightness in mere seconds, it has a heel retention system that prevent heel lift for better response and reduced fatigue, and it has an Ultralight sole that shaves weight without sacrificing the cushioning and traction you want. Sounds like they were doing it on purpose to us. Product FeaturesUpper Material: Closure: Super LaceWaterproofing: Lining: TF1Removable Liner: yesThermo-moldable Liner: yesLiner Closure: Lace LockFlex: medium (5 of 10 on Northwave"s scale)Sole: UltralightMidsole: EVAFootbed: Weight: Recommended Use: all-mountain, park, freestyleManufacturer Warranty: 1 year