Winterheat 3400 Ski Boot Heaters / Black Fade Surefoot Shoes The junior mono-injection shell

The junior mono-injection shell

The MAG lens-change tech lets you swap lenses to match the light conditions with ease

The Heatable Bootbag keeps your feet stay dry and warm

and full side zippers for easy boot access

Winterheat 3400 Ski Boot Heaters / Black Fade Surefoot Shoes The junior mono-injection shellThe 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