The Atomic Waymaker Carbon 100 W is an excellent ski boot for the advanced to expert skier who has a medium to wide forefoot and medium size shaft of the leg. A single Live Fit Panel on the lateral size of the boot is made from soft rubber that stretches out once you place your foot inside the boot for a supportive and comfortable fit. Atomic's Gold Liner features 3M Thinsulate Insulation that keeps your toes nice and warm on cold days. The Carbon Spine adds extra forward flex resistance and enhances rebound for precise control over your skis. The Waymaker Shell is equipped with the Free/Lock hiking mechanism that gives you a wide range of motion for walking when you do not have your skis on your feet. 101mm + Live Fit Panel, Carbon Spine, Gold Liner with 3M Thinsulate Insulation, One Lateral Live Fit Panel, Free/Lock System, 40mm Velcro Strap, Actual Flex: 100, Cuff Alignment: Single, Warranty: One Year, Ski Boot Width: Medium Wide (102-103mm), Flex: Very Stiff, Used: No, Ski/Walk: Yes, Forefoot Width: 101mm + Live Fit Panel, Flex Adjustment: No, Buckle Count: 3, Category: Downhill, Ski Gear Intended Use: All Mountain, Instep Height: High, Calf Volume: Medium, Skill Range: Advanced - Pro, Model Year: 2017, Product ID: 472064, Model Number: AE5014960.245, GTIN: 0887445097860