Skip to product information
1 of 1


Hotronic FootWarmer S4+ Custom Boot Heater

Hotronic FootWarmer S4+ Custom Boot Heater

Regular price $254.00 USD
Regular price Sale price $254.00 USD
Sale Sold out

Powerful LongevityS-Series NiMH batteries maintain up to 55% of a full charge and 95% of their initial capacity after four years of non-use. An increase in capacity offers up to 30% higher temperature and longer duration on a single full charge when needed most - in the cold.

4 Distinct Temperature SettingsThe S4 offers three base level settings for comfort and warmth maintenance, with a fourth setting for a blast of extra heat when needed.

Includes 2 Battery Packs, 1 Recharger, and 1 pair of Heating Elements with Cambrelle® Covers


CompatibilityFor use in Hotronic‘s Heat Ready Insoles, custom insoles, orthotics, or insoles of one‘s own choice.

Simple Installation With Household Tools

Attaches to the Power Straps of Ski Boots

  • Warranty: 2 Years
View full details

Collapsible content