In the process of developing better gel ice pack insoles, S-King Insoles has become one of the most experienced manufacturers in China. As one of S-King Insoles's multiple product series, orthotic insoles series enjoy a relatively high recognition in the market. S-King massaging gel insoles has the best features and most unique specs. The S-King insoles have a good air permeability. This product is electrically safe. The demands placed on glow wire resistance of the plastics used for insulating or mounting live components have been increased. The S-King heated insoles keep your feet warm for 4-8 hours per charge.
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