Dongguan S-King Insoles Limited specialized in Insoles and foot care products field for 20 years. With High quality products, excellent R and D capability, prefect after sale service. We have an independent products develop department, offer O D M Service from products design to 3 D artwork, 3 D artwork to samples. In 2012, our first remote heated insole was launched, and our engineer devote to other heated gear products like heated glove, heated socks, and other heated clothing. Dr.warm Heated Tech enjoy positive feedback in the US adn EU market. As a trading and manufacturing company which pass CE certification, RoHS test report, Reach test report. we will keep developing and moving forward to work with all of you to create a better future.