Lenz Heat Sole 1.0

"The Lenz Heat Sole 1.0 is the ideal solution for anyone who doesn't want to sacrifice comfort and warmth even in cold temperatures. This extremely flat heating insole has been specially developed to efficiently heat the toe area and thus ensure a pleasant foot climate. Thanks to the breathable mesh material, air circulation is maintained, effectively wicking away moisture and keeping the foot dry."
"The flexibility of the Heat Sole 1.0 is particularly noteworthy: it can be individually tailored to the respective shoe size, which guarantees a perfect fit and optimum comfort. The integrated heating elements are connected via a connection cable to Lenz lithium packs, which are available separately, and thus ensure a constant heat supply that prevents undercooling and power loss."
"This unisex heated sole is not only practical, but also a must-have for all outdooractivities in winter. Whether skiing, hiking or simply walking through snowy landscapesu2013 the Lenz Heat Sole 1.0 offers reliable protection from the cold and provides soothing warmth whenever you need itu2013."