If youve ever had a ski boot that has that one spot that just always hurts no matter what you do then its time to upgrade to the Tecnica Viva Max 10 Air Shell Ski Boot This womens boot uses an inflatable air bladder to dial in the fit in a way that supports the specific anatomy of your foot without painful pressure points By trapping this extra air around your foot you also get added warmth where it really counts The flex on the Tecnica Viva Max 10 is on the middle to stiffer side so women who want extra support in their ski boots are sure to get what they need Specs Flex Rating 80 90 Last 98 102mm (AA D widths) Liner Women specific 3D UltraFit Features Air Shell System adds a comfortable custom fit Scallop calf design to accommodate different calf sizes 3D Flared Collar for increased calf space if needed Removable heel cradle offers extra hold and reduces volume Viva women specific last has narrower heel and wider forefoot Delta Force System offers distinct stiff and soft settings 3 different density materials for natural flex Air Shell System adds a comfortable custom fit Velcro Rear spoiler adjuster to customize the fit around your calves Viva Velvet Fur Lining for added comfort and luxury 3D Max UltraFit Liner cradles womens feet Cuff alignment angles the cuff to match your stance 45mm Velcro Powerstrap for good wrap