Product descriptionThe S/Pro Alpha boot from Salomon is a narrow fitting ski boot with their new liner technology in the heelp piece where bootfitters can heat the liner, and squeeze the heel to your desired fit where it will then remain at that shape for a snug fit. Custom shell for full customisation as well as slightly thinner plastic and positioned second buckle to hug your heel without unnecessary pressure over the instep. 90 flex which is ideal for intermediate skiers.Salomon Tech - TECHNOLOGIES: Custom shell HD - The Custom Shell HD process brings fast personalization to the boot lower shell of in 10 minutes. Thin wall construction & new materials allow the foot to be closer to the shell.TECHNOLOGIES: 3D instep shell - This Shell technology, with its thinner plastic and 45° positioning of the 2nd buckle ensures stronger heel lock and more consistent foothold without unnecessary instep pressure.CUFF: Custom Shell HD - The Custom Shell HD process lets bootfitters personalize to the boot’s lower shell or cuff in 10 minutes, while thin wall construction and new materials keep the foot closer to it.LINER: My CustomFit 3D Perf - Pre-shaped around the ankles for better fit and support, the My Custom Fit 3D Perf liner is heat moldable for extra comfort and precision.STRAP: Velcro 35mmPADS: Gripwalk premounted ISO 23223SPECIFIC: Women calf adjuster - The Women Calf Adjuster allows more fitting options (perimeter +11mm & height +4mm) that adapt to different women's calf morphologies. Salomon S/Pro Alpha 90 W Ski Boot