Shein Shein is an online fast fashion retailer headquartered in Singapore. Founded in Nanjing, China in October 2008 as ZZKKO by entrepreneur Chris Xu, Shein grew to become the world\'s largest fashion retailer as of 2022. Known for selling relatively inexpensive apparel, Shein\'s success has been credited to its popularity among Generation Z consumers. The company was initially compared to that of a drop shipping business, as it was not involved in design and manufacturing, instead sourcing products from the wholesale clothing market in Guangzhou. Beginning in 2012, Shein began to establish its own supply chain system, transforming itself into a fully integrated retailer. The company has established its supply chain in Guangzhou with a network of more than 3,000 suppliers as of 2022.