evo.com | Salomon Alpine Ski Boots > The Salomon S/Pro Supra BOA X90 W Ski Boots offer all the benefits of BOA in a more palatable flex for intermediate to advanced skiers. The BOA(R) Fit System wraps around the instep better than buckles ever could, removing pressure from the top of your foot and improving power transfer between you and your skis. The user-friendly dial makes on-the-fly adjustments easy, and it all comes with classic Salomon quality and attention to detail. Don't let this boot pass you by! 35mm Velcro Strap Last: 100 mm Average last intended for medium width and volume feet; can be successfully adjusted for wider feet with the Custom Shell HD heat molding process. GripWalk ISO 23223 Walk Soles Cuff Polyurethane Flex: 90 A medium flex for intermediate to advanced skiers. | Women's Salomon S/Pro Supra BOA X90 W Ski Boots 2025 - 23.5 in Black