Never let cold feet slow you down—XLP 1C Custom heating elements deliver precise, adjustable warmth directly in your custom or preshaped insoles. Featuring a high-performance 3000 mAh Lithium-Ion battery, you can select three constant heat settings plus a Power Boost mode via the battery’s Power button. With intelligent charging technology and Cambrelle covers, these elements integrate seamlessly into any insole, providing reliable, long-lasting warmth and comfort for every winter adventure.