Tsinghua University has authorization. According to the query Taobao official website shows. Tsinghua University is authorized to allow some businesses and brands to produce and sell products with Tsinghua University logo and name, such as souvenirs, stationery, clothing, backpacks, etc. These products have been authorized and strictly audited by Tsinghua University, and their quality and safety are up to standard. So there appeared the phenomenon of selling Tsinghua schoolbags online.