The Rossignol Allspeed Pro Heat Ski Boot delivers warmth and power in spades thanks to a stiff yet approachable 110 flex index, relatively roomy 100mm last, and heated liner. The liner, which is Rossi’s Thermic Heated Liner, is operated via Bluetooth and can be set between three different heat settings to match whatever conditions you’re facing. Further increasing the boot’s versatility, Rossignol gave it an adjustable flex system that can be dialed in to your specific skiing style with a quick adjustment screw along the back spine of the boot. Nothing can ruin a day on the slopes like cold feet—stay out there all day with the Rossignol Allspeed Pro Heat.