The Alpina Elite 100 Heat is an excellent ski boot for the intermediate to advanced skier who has a medium width forefoot and medium size calf volume who is prone to getting cold feet on the mountain. Alpina has a pre-wired heating system and battery pack that is pre-installed into the liner to keep you extra warm on frigid days on the mountain. The X-Frame Construction adds extra rigidity to the four main stress points to boost your power and responsiveness. A Ski/Hike mode is easy to access with your ski pole to switch between modes for easy walking and hard skiing. Alpina's 4-Dry Liner is very breathable while being able to drain water to keep your feet dry and comfortable. An Easy Entry System allows for sliding in and out of the Elite 100 with little effort. A VCP (Volume Control Plate) can increase and decrease the amount of volume you have for a quickly dialed in fit. If you want warm feet and a powerful performance in a boot that is easy to walk in, the Alpina Elite 100 Heat is a great option. Best Fits a Medium Width Forefoot and Medium Shaft of the Leg, InTemp Heating System, X Frame Construction, Ski/Hike Mode, VCP, 4-Dry Liner, Easy Entry System, Actual Flex: 100, Cuff Alignment: Single, Warranty: One Year, Ski Boot Width: Medium Wide (102-103mm), Flex: Stiff, Used: No, Ski/Walk: Yes, Forefoot Width: 102mm, Flex Adjustment: No, Buckle Count: 4, Category: Downhill, Ski Gear Intended Use: All Mountain, Instep Height: Medium, Calf Volume: Medium, Skill Range: Intermediate - Advanced, Model Year: 2019, Product ID: 498092, Model Number: 3M32218 265, GTIN: 3838427522808