SheIn is a fast fashion cross-border clothing brand, oriented to the European, American and Middle East markets. It is mainly engaged in the independent design, production and online export of fast fashion women's clothing. The products involve women's clothing, women's shoes, accessories, swimsuits and sportswear. The model of C2B reverse selection and social crowdfunding voting, while predicting sales and production capacity through big data, sales cover 224 countries and regions around the world.