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Hotronic FootWarmer S4+ Custom Boot Heater

sku# 185473
Hotronic - FootWarmer S4+ Custom Boot Heater
Model Info

Prices displayed in U.S. dollars at checkout.

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Product Info

Cold feet and frozen toes got you down? You need the Hotronic FootWarmer S4+ Custom Boot Heater in your life. It's easy to install on any insole and comes complete with four distinct temperature settings to keep your piglets as cozy as can be. The "Custom" model does not come with insoles. Intended for installation on custom insoles you already own.

Product Details


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



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