Perfect for the skier with a medium to wide forefoot and medium to wide shaft comes the K2 B.F.C. 100 Heat boots. An integrated Therm-ic heating system in the liner can provide up to 19 hours of warmth. Three heat settings and an easy to recharge system will keep you warm and toasty. K2's Powerfuse Spyne delivers forward flex power for additional stability and a strong amount of rebound for added control. An Apres Mode and Hands Free Entry make this one of the most easy to put on and easy to walk in boots in skiing this season. If you want warm feet in a very accommodating ski boot the K2 B.F.C. 100 is the boot for you. TPU Shell and Cuff, CushFit Liner, 40mm Velcro Strap, Powerfuse Spyne, Energy Interlock, Apres Mode Walk Mechanism, Hands Free Entry, Cuff Alignment Index, Therm-ic Heat Liner, Actual Flex: 100, Cuff Alignment: Single, Warranty: One Year, Ski Boot Width: Medium Wide (102-103mm), Flex: Stiff, Ski/Walk: Yes, Forefoot Width: 103mm, Buckle Count: 4, Category: Downhill, Ski Gear Intended Use: All Mountain, Instep Height: High, Calf Volume: High, Skill Range: Intermediate - Advanced, Model Year: 2020, Product ID: 564648, Shipping Restriction: This item is not available for shipment outside of the United States., Model Number: S191900201265, GTIN: 0886745832140