Shanghai Happydo Internet Technology Co., Ltd. established in 2010, our office is located in Shanghai with over thousands of samples there for customer easily visiting us. All of our products comply with international quality standard ,Our associated factory have more than 20 years experience in the socks line, cover a land area of 20000 square meters, more than 300 knitting machines and around 200 workers, 18 management members in our factory.We specialized in manufacturing various socks, such as men socks, women socks, business socks, sport socks and so on. We also have R&D designer to design more new, fashion socks that customers requests. Moreover, we accept OEM orders and custom design.We insist on the tenet of "Good selection at a great price and high quality". We believe, reliable quality, reasonable price, and professional service is the foundation stone of an enterprise. Our main markets expanded to North America, Europe, Middle East, Southeast Asia...We listen to our customers' suggestions and make feedback actively so that we can develop high quality products to meet customers' needs. Shanghai Happydo Internet Technology Co., Ltd. is a looking forward to build successful business relationship with new clients to develop both of our business, if you have any inquiry, please contact us freely