Note: These these boots run about one size smaller than normal. So order a size larger than you normally would. The Vans Mach N-Style Women's Snowboard Boot is the most supportive boot in the Vans lineup. The Mach is ideal for the fast riding hard carving rider seeking maximum response in a comfortable and forgiving soft shell boot. Built in conjunction with the Switch N-type interface every subtle leg movement is transferred to your edge for incredible board control. Key Features of Vans Mach N-Style Snowboard Boots: T5 sole for lower foot height Shock absorbing Hi/Lo dual density PU liner Full medial/lateral stitch bond to upper Chassis sidewalls provide medial/lateral blocking for direct response Materials strategically transition from hard to soft for optimal energy flow WT Series Thermal Liner Latex Achilles pads for superior heel hold 1st layer low density heat moldable thermal material for interior custom fit 2nd layer high density heat moldable thermal material for exterior