Supported by high quality heel liner, S-King Insoles is greatly trusted by customers. S-King Insoles has created a number of successful series, and foam insoles is one of them. S-King foot care supplies is the outcome of comprehensive know-how. It is developed under these several considerations: electric control system, electromagnetism, insulation materials selection, the design of printed circuit boards, and so on. Ergonomically designed, S-King insoles are comfortable to use. With this product, people will feel rejuvenated and more energetic. They will gain more alleviated stress, which equals a more restful sleep. The S-King heated insoles keep your feet warm for 4-8 hours per charge.
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