The Salomon X Max 90 W Ski Boots provides the great fit and comfort of the stiffer X Max models, with the same Twinframe technology and 24 mm oversized pivots, but in a flex that mere mortals can be comfortable with. Maybe you dont ski quite like the pros, but theres no reason you cant benefit from the same features found in their boots. The X Max 90 W is designed to fit a moderately narrow foot, but with Salomon s remarkable Custom Shell heat molding system can be made to fit a wide variety of foot shapes comfortably.Fit: Last: 98 mm – Ideal for average to moderately narrow feet. 360° Custom Shell and Cuff – Fully moldable shell and cuff that can accommodate 98-104 mm lasts (average to wide feet), allowing for a wide array of foot types. Perfect wrapping and adapted comfort and accommodation. Womens Calf Adjustment – The most efficient and convenient calf adjustment on the market. Only one screw turn enlarges the upper cuff up to 1cm to fit all legs shapes easily and quickly. Womens Specific Cuff – Anatomic womens cuff design is lower than on mens boots.Flex: 90 – Stiff flex best suited for advanced level women.Liner: My Custom Fit 3D Performance Liner | 40% Thermo Foam – 3D construction incorporates thermoformable inserts around your ankle and heel that instantly resolve pressure points for unmatched foothold. Womens Liner – Specific volume and shape, with added warm comfy fur inside. East Step-In Band – Wide opening range thanks to the new easy step-in liner construction.Shell Materials & Design: Cuff – Polyurethane. Shell – Polyurethane/Polyamide. TwinFrame Technology – Salomon dials in just the right amount of rigidity where its needed for performance and leaves the shell softer in other areas to enhance comfort and ease of entry.Stance: 24mm Oversized Pivot – Reduced play for extreme precision and direct power transmission. Because many modern all mountain skis are wider, they require more torque to stay on edge. Oversized Pivot answers the need of wider skis. 4 mm Integrated Lifter. Energy Screw.Buckles: 4 Micro-Adjusting Aluminum Buckles. Tool Free Catch Adjustment – Easy tool free personalization of the lower leg volume by rotating and moving the catch laterally.Power Strap. 35mm Velcro Power Strap.Sole: Heel & Toe Removable Sole Pads – Heel and toe pads can be replaced when worn out.