12 YEARS EXPERIENCE 3BU Technology is a leading insole manufacturer which found Dongguan city by the year of 2012, with more than 12 years hard working and experience in this industry, we have developed to a company which has 5000 ? workshop and more than 100 skilled workers. We mainly provide professional insole R&D and production for individual insole brand, including some world class insole brand like Sidas, Footlogstics, VKTRY and etc, support small order OEM&ODM, Contact us whenever you have any requirement of insoles and we will be happy to work for you!