The Salomon S/Pro R 100 is a great boot for the intermediate to advanced skier who has a medium width forefoot and medium size shaft of the leg. Salomon's new Coreframe Construction uses a thinner construction that reduces weight, but strategic reinforcements add even more energy transmission. A 24mm Oversized Pivot beefs up the connection from the upper cuff to the lower shell for even more power transmission. The new Sense Amplifier Cuff is made from a more elastic material underneath the cuff buckles that adds more rebound and responsiveness. A Seamless liner feels very comfortable across the toe box. If you want a sturdy boot that is built for comfort and packed with performance, the Salomon S/Pro R 100 is a perfect option for you. Sense Amplifier Cuff, Coreframe Construction, Seamless Liner, Best Fits a Medium Width Forefoot and Medium Size Shaft of the Leg, Ski Boot Width: Medium (99-101mm), Forefoot Width: 100mm, Buckle Count: 5, Category: Downhill, Ski Gear Intended Use: All Mountain, Skill Range: Advanced Intermediate - Expert, Model Year: 2020, Product ID: 605083, Model Number: L40876600 255, GTIN: 0889645992518, Calf Volume: Medium, Instep Height: Medium, Flex Adjustment: No, Ski/Walk: No, Used: No, Flex: Medium, Warranty: One Year, Cuff Alignment: None, Actual Flex: 100