It took Ralph Lauren, who launched the Polo brand ... week turnarounds. Shein has drawn audiences across Europe and the U.S.—its dominant markets—with its viral “clothing haul” videos ...

That brand is Shein (pronounced SHE-in), the online fast fashion retailer founded in Nanjing, China, in 2008 as ZZKKO. During the height of the COVID-19 pandemic, Shein took off across social ...