Winterheat 3400 Ski Boot Heaters / Gold Black Further customize the boot by

Further customize the boot by adjusting forward lean through Power Shift or repositioning the Adaptive Fit System (AFS) Tongue

lift passes and mobile phones

you can control the strength of your heat remotely using your smartphone

consistent flex is combined with increased shock absorption through the shell for enhanced snow feel and contact

and behind the calf

Winterheat 3400 Ski Boot Heaters / Gold Black Further customize the boot byThe Winterheat 3400 Bluetooth Batteries are the best boot heaters on the market. With hours of powerful heat, these heaters will keep your feet warm so you can focus on enjoying your day outside! Winterheat batteries are compatible with Surefoot Custom Liners, no installation required. Features With the Winterheat 3400 Bluetooth battery, you can control the strength of your heat remotely using your smartphone. Up to 17 hours of heat Comes with a