The BFC 100 HEAT maxes out the comfort meter with its 103mm last, heat-moldable shell, Après Mode walk mode, and heated Therm-ic liner. Easy to get into and designed for all-day comfort, this medium-flexing boot is the ticket for skiers who value warmth and ease of use above all else.Specifications:- Boot width: 103mm- Liner: thermic® cushfit- Walk mode: walk mode- Ski boots category: comfort heated- Boot category: comfort heatedTechnology:Powerfuse spyne:- A rear co-injected Y shaped support that adds strength and power to the Energy Interlock in order to maximize fore/aft flex efficiency and lateral stiffness for responsiveness in every type of terrain.Energy interlock:- A rivet-free technology that integrates the cuff and shell, putting less stress on the boot’s material and produces a smoother, progressive flex.Therm-ic heated liners:- Integrated heating system to keep your feet warm on cold days. Increases mobility and performance of foot muscles. Three heat setting provide warmth from 4 to 19 hours. Fully charges in 6 to 7 hours with a USB cable.Grip walk outsoles:- Removable and interchangeable ISO 9523 alpine rockered soles collaboratively designed to work with Marker’s Grip Walk binding system for better grip and added comfort when walking and standing in boots, but doesn’t compromise the power transmission and release function between the boot and binding when skiing. Preinstalled.Hands free entry:- Dual material overlap for intuitive and easy hands-free exit and entry.Cuff alignment index:- Single lateral sided cuff alignment for +/-1 degrees of cuff adjustment.