Pre-shipment inspection (PSI) is one of the many quality control tests conducted by Dongguan S-King Insoles Limited. This inspection is based on standard QC testing or on customer request. Based on these criteria and procedures, samples are randomly selected and defects are checked. For us, pre-shipment inspection is an important step in the quality control process and a way to check the quality of the kids insoles before shipment.

Since its establishment, S-King Insoles has been a professional manufacturer in the industry after years of accumulated experience in developing and designing memory foam insoles. S-King Insoles's heated insoles series include multiple types. The product is competitive in terms of the quality, performance, durability, etc. S-King insoles provide a good shock absorption. Developing superior women's insoles in S-King Insoles better guarantees the quality of customer satisfication. S-King insoles have to go through more than 1,000,000 times of anti-bending tests.

We deliver our value proposition in several areas through innovation, rationalization, optimization, and automation enabled by our people, products and services.