The Salomon X-Max 90 W is a great ski boot for aggressive skiing women who have a narrow forefoot and narrow shaft of the leg. Salomon's 360 Degree Custom Shell can be customized for your foot in a matter of minutes by an Authorized Salomon Dealer. The shop will place the shell in a special oven to heat it up. Once the shell is warm enough they will place it on your foot. Once the shell starts to cool it will mold to adapt to the shape of your foot. A My Custom Fit 3D Performance Liner is also thermoformable by heat for a totally customized fit. The TwinFrame2 Technology has lightweight reinforcements added to the sole that prevents torsional twisting and adds responsiveness. The Women's Specific Liner, Cuff and Calf Adjuster keep your feet and legs comfortable and securely in place when you are out charging around the mountain. Salomon's 24mm Oversized Pivot beefs up the connection from the upper cuff to the lower shell that drives energy directly to your skis. Best Fits a Narrow Forefoot and Narrow Shaft of the Leg, 360 Degree Custom Shell, TwinFrame2, 24mm Oversized Pivot, My Custom Fit 3D Performance Liner, 4mm Integrated Lifter, Women Specific Liner, Women Calf Adjuster, Women Cuff Design, 35mm Power Strap, Actual Flex: 90, Cuff Alignment: None, Warranty: One Year, Ski Boot Width: Narrow (95-98mm), Flex: Stiff, Used: No, Ski/Walk: No, Forefoot Width: 98mm+ Custom Shell, Flex Adjustment: No, Buckle Count: 4, Category: Downhill, Ski Gear Intended Use: All Mountain, Instep Height: Standard, Calf Volume: Standard, Skill Range: Advanced Intermediate - Expert, Model Year: 2019, Product ID: 530602, Model Number: L40549700245, GTIN: 0889645660592