This pro model takes HEAD's innovative use of new thermoplastic to a new level of absorption capabilities. The Raptor WCR 140S Pro has a 96-mm last, a deep heel pocket, a long toe box for toe articulation, and a Race Stance that allows skiers to remain more centered. Along with a FIS approved sole, the boot features Flex Performance tuning and Rear support tuning, with an adjustable flex of 150 to 140. The WCR Pro liner is customizable with Liquid Fit, an adjustable tongue, and a SL booster Velcro strap. Four micro-adjustable low-profile Spineflex buckles deliver an optimum athletic fit and responsive feel.